{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho h\u00ecnh v\u1ebd: <br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB201.png'<\/center> <br\/>Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y \u0111\u00fang:","select":["A. B\u00e0n kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p A","B. V\u1edf kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p B"],"hint":"Quan s\u00e1t h\u00ecnh v\u1ebd","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/>A \u2013 Quan s\u00e1t h\u00ecnh v\u1ebd xem b\u00e0n c\u00f3 n\u1eb1m trong t\u1eadp h\u1ee3p A kh\u00f4ng <br\/>B \u2013 Quan s\u00e1t h\u00ecnh v\u1ebd xem v\u1edf c\u00f3 n\u1eb1m trong t\u1eadp h\u1ee3p B kh\u00f4ng<br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> + V\u00ec b\u00e0n kh\u00f4ng n\u1eb1m trong t\u1eadp h\u1ee3p A<br\/>N\u00ean kh\u1eb3ng \u0111\u1ecbnh <b>\u201cB\u00e0n kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p A\u201d <\/b>l\u00e0 <b>\u0110\u00daNG <\/b> <br\/>+ V\u00ec v\u1edf n\u1eb1m trong t\u1eadp h\u1ee3p B <br\/>N\u00ean kh\u1eb3ng \u0111\u1ecbnh <b>\u201cV\u1edf kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p B\u201d <\/b> l\u00e0 <b>SAI <\/b> <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A<\/span>","column":2}]}],"id_ques":21},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Cho h\u00ecnh v\u1ebd: <br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB201.png' <\/center><br\/>Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y \u0111\u00fang:","select":["A. S\u00e1ch l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p B","B. Th\u01b0\u1edbc l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p B"],"hint":"Quan s\u00e1t h\u00ecnh v\u1ebd","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/> A \u2013 Quan s\u00e1t h\u00ecnh v\u1ebd xem s\u00e1ch c\u00f3 n\u1eb1m trong t\u1eadp h\u1ee3p B kh\u00f4ng <br\/>B \u2013 Quan s\u00e1t h\u00ecnh v\u1ebd xem th\u01b0\u1edbc c\u00f3 n\u1eb1m trong t\u1eadp h\u1ee3p B kh\u00f4ng<br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> + V\u00ec s\u00e1ch n\u1eb1m trong t\u1eadp h\u1ee3p B <br\/>N\u00ean kh\u1eb3ng \u0111\u1ecbnh<b> \u201cs\u00e1ch kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p B\u201d<\/b>l\u00e0 <b>SAI <\/b> <br\/>+ V\u00ec th\u01b0\u1edbc n\u1eb1m trong t\u1eadp h\u1ee3p B <br\/>N\u00ean kh\u1eb3ng \u0111\u1ecbnh <b>\u201cTh\u01b0\u1edbc l\u00e0 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p B\u201d <\/b> l\u00e0 <b> \u0110\u00daNG <\/b> <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B<\/span>","column":2}]}],"id_ques":22},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Cho t\u1eadp h\u1ee3p B g\u1ed3m c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 chia h\u1ebft cho 3. Kh\u1eb3ng \u0111\u1ecbnh sau <b> \u0111\u00fang <\/b> hay <b>sai? <\/b> <br\/> S\u1ed1 97 thu\u1ed9c t\u1eadp h\u1ee3p B?","select":["A. \u0110\u00daNG","B. SAI"],"hint":"X\u00e9t xem s\u1ed1 97 c\u00f3 chia h\u1ebft cho 3 kh\u00f4ng","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> X\u00e9t xem s\u1ed1 97 c\u00f3 chia h\u1ebft cho 3 kh\u00f4ng <br\/> N\u1ebfu s\u1ed1 97 chia h\u1ebft cho 3 th\u00ec kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 \u0111\u00fang <\/span> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> S\u1ed1 97 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 9 + 7 = 16 <br\/> N\u00ean s\u1ed1 97 kh\u00f4ng chia h\u1ebft cho 3<br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh \u201c97 thu\u1ed9c t\u1eadp h\u1ee3p B\u201d l\u00e0<span class='basic_pink'> SAI <\/span>","column":2}]}],"id_ques":23},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho t\u1eadp h\u1ee3p B g\u1ed3m c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 chia h\u1ebft cho 3. Kh\u1eb3ng \u0111\u1ecbnh sau <b> \u0111\u00fang <\/b> hay <b>sai? <\/b> <br\/> S\u1ed1 84 thu\u1ed9c t\u1eadp h\u1ee3p B?","select":["A. \u0110\u00daNG","B. SAI"],"hint":"X\u00e9t xem s\u1ed1 84 c\u00f3 chia h\u1ebft cho 3 kh\u00f4ng","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> X\u00e9t xem s\u1ed1 84 c\u00f3 chia h\u1ebft cho 3 kh\u00f4ng <br\/> N\u1ebfu 84 chia h\u1ebft cho 3 th\u00ec kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 \u0111\u00fang <\/span> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> S\u1ed1 84 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 8 + 4 = 12 <br\/> N\u00ean s\u1ed1 84 thu\u1ed9c t\u1eadp h\u1ee3p B<br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh \u201c84 thu\u1ed9c t\u1eadp h\u1ee3p B\u201d l\u00e0<span class='basic_pink'> \u0110\u00daNG <\/span>","column":2}]}],"id_ques":24},{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["4"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y vi\u1ebft t\u1eadp h\u1ee3p sau b\u1eb1ng c\u00e1ch li\u1ec7t k\u00ea ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p: <br\/>$C=\\text{ }\\! \\! \\{\\! \\text{ }x\\in {\\mathbb{N}}|4x - 2 = 14\\}$ <br\/> V\u1eady C ={ _input_}","hint":"T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean x th\u1ecfa m\u00e3n 4x - 2 = 14","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean x th\u1ecfa m\u00e3n 4x - 2 = 14<br\/><\/span><span class='basic_green'> B\u00e0i gi\u1ea3i: <br\/><\/span> Ta c\u00f3: 4x - 2 = 14 <br\/>4x = 14 + 2 <br\/> 4x = 16 <br\/>x = 4 <br\/><span class='basic_pink'>V\u1eady C = {4}<\/span>"}]}],"id_ques":25},{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["1"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y vi\u1ebft t\u1eadp h\u1ee3p sau b\u1eb1ng c\u00e1ch li\u1ec7t k\u00ea ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p: <br\/>$D=\\left\\{y \\in {{\\mathbb{N}}}| \\dfrac{1}{2} .y+\\dfrac{2}{3} . y= \\dfrac{7}{6} \\right\\} $<br\/> V\u1eady D ={ _input_}","hint":"T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean y th\u1ecfa m\u00e3n $\\dfrac{1}{2}\\times y+\\dfrac{2}{3}\\times y=\\dfrac{7}{6}$","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean y th\u1ecfa m\u00e3n $\\dfrac{1}{2}. y+\\dfrac{2}{3}. y=\\dfrac{7}{6}$ <br\/><\/span><span class='basic_green'> B\u00e0i gi\u1ea3i: <br\/><\/span> Ta c\u00f3: <br\/> $\\begin{align*} &\\dfrac{1}{2} .y+\\dfrac{2}{3} . y= \\dfrac{7}{6} \\\\ & \\dfrac{3}{6} . y + \\dfrac{4}{6} . y = \\dfrac{7}{6} \\\\ & \\dfrac{7}{6} . y = \\dfrac{7}{6} \\\\ & y = \\dfrac{7}{6} : \\dfrac{7}{6} \\\\ & y = 1 \\end{align*}$ <br\/><span class='basic_pink'>V\u1eady D = {1}<\/span>"}]}],"id_ques":26},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"T\u1eadp h\u1ee3p M g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 tr\u00f2n ch\u1ee5c c\u00f3 2 ch\u1eef s\u1ed1 \u0111\u01b0\u1ee3c vi\u1ebft l\u00e0:","select":["A. M = {10}","B. M = {50; 70; 80}","C. M = {10; 20; 30; 40; 50; 60; 70; 80; 90} ","D. M = 10; 90; 40; 50"],"hint":"Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 tr\u00f2n ch\u1ee5c c\u00f3 2 ch\u1eef s\u1ed1, \u0111\u1ed1i chi\u1ebfu c\u00e1c \u0111\u00e1p \u00e1n xem \u0111\u00e1p \u00e1n n\u00e0o \u0111\u00fang v\u00e0 \u0111\u1ea7y \u0111\u1ee7","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/>Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 tr\u00f2n ch\u1ee5c c\u00f3 2 ch\u1eef s\u1ed1, \u0111\u1ed1i chi\u1ebfu c\u00e1c \u0111\u00e1p \u00e1n xem \u0111\u00e1p \u00e1n n\u00e0o \u0111\u00fang v\u00e0 \u0111\u1ea7y \u0111\u1ee7<br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> C\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean tr\u00f2n ch\u1ee5c c\u00f3 2 ch\u1eef s\u1ed1 l\u00e0: 10; 20; 30; 40; 50; 60; 70; 80; 90 <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0 \u0111\u1ea7y \u0111\u1ee7 l\u00e0: C<\/span>","column":2}]}],"id_ques":27},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"M\u1ed9t n\u0103m g\u1ed3m 4 qu\u00fd. T\u1eadp h\u1ee3p B t\u1ea5t c\u1ea3 c\u00e1c th\u00e1ng c\u1ee7a qu\u00fd 3 trong n\u0103m \u0111\u01b0\u1ee3c vi\u1ebft l\u00e0:","select":["A. B = {th\u00e1ng 6, th\u00e1ng 7, th\u00e1ng 8}","B. B = {th\u00e1ng 5, th\u00e1ng 6, th\u00e1ng 7}","C. B = {th\u00e1ng 7, th\u00e1ng 8, th\u00e1ng 9} ","D. B = {th\u00e1ng 8, th\u00e1ng 9, th\u00e1ng 10}"],"hint":"M\u1ed9t n\u0103m c\u00f3 12 th\u00e1ng g\u1ed3m 4 qu\u00fd, m\u1ed7i qu\u00fd c\u00f3 3 th\u00e1ng v\u1eady qu\u00fd th\u1ee9 3 g\u1ed3m nh\u1eefng th\u00e1ng n\u00e0o?","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/>M\u1ed9t n\u0103m c\u00f3 12 th\u00e1ng chia l\u00e0m 4 qu\u00fd v\u1eady m\u1ed7i qu\u00fd c\u00f3 3 th\u00e1ng<br\/> Qu\u00fd 1 g\u1ed3m nh\u1eefng th\u00e1ng n\u00e0o, qu\u00fd 2, qu\u00fd 3, qu\u00fd 4 g\u1ed3m nh\u1eefng th\u00e1ng n\u00e0o<br\/> \u0110\u1ed1i chi\u1ebfu c\u00e1c th\u00e1ng c\u1ee7a qu\u00fd th\u1ee9 3 trong n\u0103m v\u1edbi c\u00e1c \u0111\u00e1p \u00e1n <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> M\u1ed9t n\u0103m c\u00f3 4 qu\u00fd v\u1eady m\u1ed7i qu\u00fd c\u00f3 3 th\u00e1ng <br\/> Qu\u00fd 1 g\u1ed3m: Th\u00e1ng 1, th\u00e1ng 2, th\u00e1ng 3 <br\/> Qu\u00fd 2 g\u1ed3m: Th\u00e1ng 4, th\u00e1ng 5, th\u00e1ng 6 <br\/> Qu\u00fd 3 g\u1ed3m: Th\u00e1ng 7, th\u00e1ng 8, th\u00e1ng 9 <br\/> Qu\u00fd 4 g\u1ed3m: Th\u00e1ng 10, th\u00e1ng 11, th\u00e1ng 12 <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C<\/span>","column":2}]}],"id_ques":28},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Cho 2 t\u1eadp h\u1ee3p: <br\/> A = {m; n; 8; 4; 7; 25} <br\/> B = {9; n; y; 7; 4; 32} <br\/> C\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p A v\u00e0 thu\u1ed9c t\u1eadp h\u1ee3p B l\u00e0:","select":["A. n; 8; 7","B. 4; 7; n","C. 8; 7; 9 ","D. 4; 9; 25"],"hint":"T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c ph\u1ea7n t\u1eed gi\u1ed1ng nhau \u1edf hai t\u1eadp h\u1ee3p","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/>T\u00ecm c\u00e1c ph\u1ea7n t\u1eed gi\u1ed1ng nhau \u1edf c\u1ea3 hai t\u1eadp h\u1ee3p<br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> C\u00e1c ph\u1ea7n t\u1eed gi\u1ed1ng nhau \u1edf hai t\u1eadp h\u1ee3p l\u00e0: n; 4; 7 <br\/> V\u1eady c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p A v\u00e0 thu\u1ed9c t\u1eadp h\u1ee3p B l\u00e0: n; 4; 7<br\/><span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: B<\/span>","column":2}]}],"id_ques":29},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Cho 2 t\u1eadp h\u1ee3p: <br\/> A = {ch\u00f3; m\u00e8o; g\u00e0} <br\/> B = {V\u1ecbt; ch\u00f3; ngan; thi\u00ean nga} <br\/> C\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p A nh\u01b0ng kh\u00f4ng thu\u1ed9c h\u1ee3p B l\u00e0:","select":["A. ch\u00f3; g\u00e0","B. m\u00e8o; g\u00e0","C. ngan; v\u1ecbt","D. g\u00e0; thi\u00ean nga"],"hint":"G\u1ea1ch \u0111i c\u00e1c ph\u1ea7n t\u1eed gi\u1ed1ng nhau \u1edf c\u1ea3 hai t\u1eadp h\u1ee3p nh\u01b0 v\u1eady s\u1ebd c\u00f2n l\u1ea1i c\u00e1c ph\u1ea7n t\u1eed ch\u1ec9 thu\u1ed9c t\u1eadp h\u1ee3p n\u00e0y m\u00e0 kh\u00f4ng thu\u1ed9c t\u1eadp h\u1ee3p kia","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/>G\u1ea1ch \u0111i c\u00e1c ph\u1ea7n t\u1eed gi\u1ed1ng nhau \u1edf c\u1ea3 hai t\u1eadp h\u1ee3p nh\u01b0 v\u1eady s\u1ebd c\u00f2n l\u1ea1i c\u00e1c ph\u1ea7n t\u1eed ch\u1ec9 thu\u1ed9c t\u1eadp h\u1ee3p n\u00e0y m\u00e0 kh\u00f4ng thu\u1ed9c t\u1eadp h\u1ee3p kia<br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> C\u00e1c ph\u1ea7n t\u1eed gi\u1ed1ng nhau \u1edf hai t\u1eadp h\u1ee3p l\u00e0: ch\u00f3 <br\/> V\u1eady c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p A m\u00e0 kh\u00f4ng thu\u1ed9c t\u1eadp h\u1ee3p B l\u00e0: m\u00e8o; g\u00e0<br\/><span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: B<\/span>","column":2}]}],"id_ques":30},{"time":24,"part":[{"title":"N\u1ed1i t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb \u1edf c\u1ed9t b\u00ean tr\u00e1i v\u1edbi c\u1ed9t b\u00ean ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c c\u00e2u ho\u00e0n ch\u1ec9nh","title_trans":"N\u1ed1i t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb \u1edf c\u1ed9t b\u00ean tr\u00e1i v\u1edbi c\u1ed9t b\u00ean ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c c\u00e2u ho\u00e0n ch\u1ec9nh","audio":"","temp":"matching","correct":[["3","1","2"]],"list":[{"point":5,"image":"","left":["$A = \\left\\{ x\\in \\mathbb{N}|8 - x = 5\\right\\}$","$ A =\\left\\{ x\\in \\mathbb{N}|3 : x = 3\\right\\}$","$ A =\\left\\{ x\\in \\mathbb{N}|5.x = 12\\right\\}$"],"right":["A = {1}","$A = \\left\\{\\dfrac{12}{5}\\right\\}$","A = {3}"],"top":100,"hint":"T\u00ecm c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a x th\u1ecfa m\u00e3n t\u1eadp h\u1ee3p A \u1edf c\u1ed9t b\u00ean tr\u00e1i sau \u0111\u00f3 n\u1ed1i v\u1edbi gi\u00e1 tr\u1ecb th\u00edch h\u1ee3p \u1edf c\u1ed9t b\u00ean ph\u1ea3i","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<br\/><\/span> +) T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean th\u1ecfa m\u00e3n: 8 - x = 5 sau \u0111\u00f3 n\u1ed1i v\u1edbi gi\u00e1 tr\u1ecb th\u00edch h\u1ee3p \u1edf c\u1ed9t b\u00ean ph\u1ea3i <br\/> +) T\u00ecm s\u1ed1 t\u1ef1 x th\u1ecfa m\u00e3n 3 : x = 3 sau \u0111\u00f3 n\u1ed1i v\u1edbi \u0111\u00e1p \u00e1n \u1edf c\u1ed9t b\u00ean ph\u1ea3i <br\/> +) T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean x th\u1ecfa m\u00e3n: 5.x = 12 sau \u0111\u00f3 n\u1ed1i v\u1edbi \u0111\u00e1p \u00e1n \u1edf c\u1ed9t b\u00ean ph\u1ea3i<\/span> <br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $$\\begin{align*} +) 8 - x &= 5 \\\\ x &= 8 - 5 \\\\ x &= 3 \\end{align*}$$ $$\\begin{align*} +) 3 : x &= 3\\\\ x &= 3 : 3 \\\\ x &= 1 \\end{align*} $$ $$\\begin{align*} +) 5.x &= 12 \\\\ x &= \\dfrac {12}{5} \\end{align*}$$ <span class='basic_pink'>V\u1eady c\u00e2u 1 - A= {3}, c\u00e2u 2 - A = {1}, c\u00e2u 3 - $A = \\left\\{\\dfrac{12}{5}\\right\\}$<\/span>"}]}],"id_ques":31},{"time":24,"part":[{"title":"N\u1ed1i t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb \u1edf c\u1ed9t b\u00ean tr\u00e1i v\u1edbi c\u1ed9t b\u00ean ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c c\u00e2u ho\u00e0n ch\u1ec9nh","title_trans":"N\u1ed1i t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb \u1edf c\u1ed9t b\u00ean tr\u00e1i v\u1edbi c\u1ed9t b\u00ean ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c c\u00e2u ho\u00e0n ch\u1ec9nh","audio":"","temp":"matching","correct":[["2","1","3"]],"list":[{"point":5,"image":"","left":["$\\left\\{ A = x\\in \\mathbb{N}|(x - 45).27 = 0\\right\\}$","$\\left\\{ A = x\\in \\mathbb{N}|23.(42 - x) = 23\\right\\}$","$\\left\\{ A = x\\in \\mathbb{N}|(x - 47) - 115 = 0\\right\\}$"],"right":["A = {41}","A = {45}","A = {162}"],"top":100,"hint":"T\u00ecm c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a x th\u1ecfa m\u00e3n t\u1eadp h\u1ee3p A \u1edf c\u1ed9t b\u00ean tr\u00e1i sau \u0111\u00f3 n\u1ed1i v\u1edbi gi\u00e1 tr\u1ecb th\u00edch h\u1ee3p \u1edf c\u1ed9t b\u00ean ph\u1ea3i","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<br\/><\/span> +) T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean th\u1ecfa m\u00e3n: (x - 45).27 = 0sau \u0111\u00f3 n\u1ed1i v\u1edbi gi\u00e1 tr\u1ecb th\u00edch h\u1ee3p \u1edf c\u1ed9t b\u00ean ph\u1ea3i <br\/> +) T\u00ecm s\u1ed1 t\u1ef1 x th\u1ecfa m\u00e3n 23. (42 - x) = 0 sau \u0111\u00f3 n\u1ed1i v\u1edbi \u0111\u00e1p \u00e1n \u1edf c\u1ed9t b\u00ean ph\u1ea3i <br\/> +) T\u00ecm s\u1ed1 t\u1ef1 nhi\u00ean x th\u1ecfa m\u00e3n: (x - 47) - 115 = 0 sau \u0111\u00f3 n\u1ed1i v\u1edbi \u0111\u00e1p \u00e1n \u1edf c\u1ed9t b\u00ean ph\u1ea3i<\/span> <br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $$\\begin{align*} +) (x - 45). 27 &= 0 \\\\ 27x - 1215 &= 0 \\\\ 27x &= 1215 \\\\ x &= 45 \\end{align*}$$ <br\/> $$\\begin{align*} +) 23. (42 - x) &= 23\\\\ 42 - x &= 1 \\\\ x &= 41 \\end{align*} $$ <br\/> $$\\begin{align*} +) (x - 47) - 115 &= 0\\\\ x - 162 &= 0 \\\\ x &= 162\\end{align*}$$ <br\/><span class='basic_pink'>V\u1eady c\u00e2u 1 - A= {45}, c\u00e2u 2 - A = {41}, c\u00e2u 3 - A = {162}<\/span>"}]}],"id_ques":32},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho c\u00e1c s\u1ed1 li\u1ec7u trong b\u1ea3ng sau (n\u0103m 1999): <br\/> <table><tr><th>N\u01b0\u1edbc<br><\/th><th>D\u00e2n s\u1ed1<br><\/th><\/tr><tr><td>Cam-Pu-chia<\/td><td>11 900 000<br><\/td><\/tr><tr><td>L\u00e0o<br><\/td><td>5 000 000<br><\/td><\/tr><tr><td>Th\u00e1i Lan<br><\/td><td>61 800 000<br><\/td><\/tr><tr><td>Vi\u1ec7t Nam<br><\/td><td>76 300 000<br><\/td><\/tr><tr><td>Ma-Lai-xi-a<\/td><td>22 700 000<br><\/td><\/tr><tr><td>Phi-l\u00edp-pin<br><\/td><td>74 700 000<br><\/td><\/tr><\/table> <br\/> T\u1eadp h\u1ee3p C g\u1ed3m 3 n\u01b0\u1edbc c\u00f3 d\u00e2n s\u1ed1 \u0111\u00f4ng nh\u1ea5t l\u00e0:","select":["A. C = {Phi-l\u00edp-pin, Th\u00e1i Lan, Vi\u1ec7t Nam}","B. C = {Ma-Lai-xi-a, Vi\u1ec7t Nam, Phi-l\u00edp-pin}","C. C = {Cam-Pu-Chia, Vi\u1ec7t Nam, Phi-l\u00edp-pin} ","D. C = {Vi\u1ec7t Nam, Th\u00e1i lan, Ma-Lai-xi-a}"],"hint":"D\u1ef1a v\u00e0o b\u1ea3ng s\u1ed1 li\u1ec7u","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <br\/><\/span> Quan s\u00e1t b\u1ea3ng s\u1ed1 li\u1ec7u t\u00ecm 3 n\u01b0\u1edbc c\u00f3 d\u00e2n s\u1ed1 \u0111\u00f4ng nh\u1ea5t<br\/> <\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Nh\u00ecn v\u00e0o b\u1ea3ng s\u1ed1 li\u1ec7u ta th\u1ea5y 3 n\u01b0\u1edbc c\u00f3 d\u00e2n s\u1ed1 \u0111\u00f4ng nh\u1ea5t l\u00e0: Vi\u1ec7t Nam, Phi-l\u00edp-pin, Th\u00e1i Lan <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span>","column":2}]}],"id_ques":33},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho c\u00e1c s\u1ed1 li\u1ec7u trong b\u1ea3ng sau: <br\/><table><tr><th>N\u01b0\u1edbc<br><\/th><th>D\u00e2n s\u1ed1<br><\/th><\/tr><tr><td>Cam-Pu-chia<\/td><td>11 900 000<br><\/td><\/tr><tr><td>L\u00e0o<br><\/td><td>5 000 000<br><\/td><\/tr><tr><td>Th\u00e1i Lan<br><\/td><td>61 800 000<br><\/td><\/tr><tr><td>Vi\u1ec7t Nam<br><\/td><td>76 300 000<br><\/td><\/tr><tr><td>Ma-Lai-xi-a<\/td><td>22 700 000<br><\/td><\/tr><tr><td>Phi-l\u00edp-pin<br><\/td><td>74 700 000<br><\/td><\/tr><\/table> <br\/> T\u1eadp h\u1ee3p D g\u1ed3m 3 n\u01b0\u1edbc c\u00f3 d\u00e2n s\u1ed1 \u00edt nh\u1ea5t l\u00e0:","select":["A. D = {Cam-Pu-Chia, L\u00e0o, Ma-Lai-xi-a}","B. D = {Cam-Pu-Chia, Ma-Lai-xi-a, Th\u00e1i Lan}","C. D = { L\u00e0o, Cam-Pu-Chia, Th\u00e1i Lan} ","D. D = {L\u00e0o, Ma-Lai-xi-a, Vi\u1ec7t Nam}"],"hint":"D\u1ef1a v\u00e0o b\u1ea3ng s\u1ed1 li\u1ec7u","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <br\/><\/span> Quan s\u00e1t b\u1ea3ng s\u1ed1 li\u1ec7u t\u00ecm 3 n\u01b0\u1edbc c\u00f3 d\u00e2n s\u1ed1 \u00edt nh\u1ea5t<br\/> <\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Nh\u00ecn v\u00e0o b\u1ea3ng s\u1ed1 li\u1ec7u ta th\u1ea5y 3 n\u01b0\u1edbc c\u00f3 d\u00e2n s\u1ed1 \u00edt nh\u1ea5t l\u00e0: L\u00e0o, Cam-Pu-chia, Ma-Lai-xi-a <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span>","column":2}]}],"id_ques":34},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Cho h\u00ecnh v\u1ebd: <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB202.png' \/><\/center> <br\/> T\u1eadp h\u1ee3p H c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c A v\u00e0 thu\u1ed9c B l\u00e0:","select":["A. H = {x; c}","B. H = {x; 4}","C. H = {3; d} ","D. H = {x; 3}"],"hint":"Quan s\u00e1t h\u00ecnh v\u1ebd t\u00ecm c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c ph\u1ea7n c\u1eaft nhau c\u1ee7a hai v\u00f2ng tr\u00f2n","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <br\/><\/span> Quan s\u00e1t h\u00ecnh v\u1ebd: <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB2021.png' \/><\/center> <br\/>C\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c ph\u1ea7n h\u00ecnh m\u00e0u v\u00e0ng ch\u00ednh l\u00e0 c\u00e1c ph\u1ea7n thu\u1ed9c c\u1ea3 hai t\u1eadp h\u1ee3p<br\/> <\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Nh\u00ecn v\u00e0o h\u00ecnh v\u1ebd ta th\u1ea5y c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c A v\u00e0 thu\u1ed9c B l\u00e0: x; 3 <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. H = {x; 3} <\/span>","column":2}]}],"id_ques":35},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Cho h\u00ecnh v\u1ebd: <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB102.png' \/><\/center> <br\/> T\u1eadp h\u1ee3p Z c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c B nh\u01b0ng kh\u00f4ng thu\u1ed9c A l\u00e0:","select":["A. Z = {a; b}","B. Z = {a; n}","C. Z = {m; n} ","D. Z = {b; m}"],"hint":"Quan s\u00e1t h\u00ecnh v\u1ebd t\u00ecm c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c B nh\u01b0ng n\u1eb1m ngo\u00e0i ph\u1ea7n c\u1eaft nhau c\u1ee7a hai v\u00f2ng tr\u00f2n","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/> Quan s\u00e1t h\u00ecnh v\u1ebd: <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB1021.png' \/><\/center> <br\/>C\u00e1c ph\u1ea7n thu\u1ed9c t\u1eadp h\u1ee3p B nh\u01b0ng n\u1eb1m ngo\u00e0i ph\u1ea7n m\u00e0u xanh ch\u00ednh l\u00e0 c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p B nh\u01b0ng kh\u00f4ng thu\u1ed9c t\u1eadp h\u1ee3p A<br\/> <\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Nh\u00ecn v\u00e0o h\u00ecnh v\u1ebd ta th\u1ea5y c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c B v\u00e0 kh\u00f4ng thu\u1ed9c A l\u00e0: m, n <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. Z = {m; n} <\/span>","column":2}]}],"id_ques":36},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["39"],["93"],["48"],["84"],["57"],["75"]]],"list":[{"point":5,"width":40,"content":"","type_input":"","ques":"Vi\u1ebft t\u1eadp h\u1ee3p I g\u1ed3m c\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 kh\u00e1c nhau c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 12 <br\/> V\u1eady I = { _input_ ; _input_ ; _input_ ; _input_ ; _input_ ; _input_}","hint":"Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 kh\u00e1c nhau v\u00e0 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 12","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 kh\u00e1c nhau v\u00e0 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 12<\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: 12 = 3 + 9 = 4 + 8 = 5 + 7 = 6 + 6 <br\/> C\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 kh\u00e1c nhau v\u00e0 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 12 l\u00e0: 39; 93; 48; 84; 57; 75 <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: <span class='basic_pink'>39; 93; 48; 84; 57; 75<\/span>"}]}],"id_ques":37},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["68"],["86"],["77"],["59"],["95"]]],"list":[{"point":5,"width":40,"content":"","type_input":"","ques":"Vi\u1ebft t\u1eadp h\u1ee3p K g\u1ed3m c\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 v\u00e0 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 14 <br\/> V\u1eady K = { _input_ ; _input_ ; _input_ ; _input_ ; _input_ }","hint":"Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 m\u00e0 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 14","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 m\u00e0 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 14<\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: 14 = 7 + 7 = 8 + 6 = 9 + 5 <br\/> C\u00e1c s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 m\u00e0 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng 14 l\u00e0: 77; 86; 68; 95; 59 <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: <span class='basic_pink'>86; 77; 68; 95; 59<\/span>"}]}],"id_ques":38},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Cho h\u00ecnh v\u1ebd: <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB203.png' \/><\/center> <br\/> Kh\u1eb3ng \u0111\u1ecbnh M= {4; b; 12; a; 9} l\u00e0 <b> \u0111\u00fang <\/b> hay <b> sai <\/b>? ","select":["A. \u0110\u00daNG","B. SAI"],"hint":"Quan s\u00e1t h\u00ecnh v\u1ebd c\u00e1c ph\u1ea7n t\u1eed n\u1eb1m trong v\u00f2ng tr\u00f2n m\u00e0u cam ch\u00ednh l\u00e0 c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p M","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/> Li\u1ec7t k\u00ea c\u00e1c ph\u1ea7n t\u1eed n\u1eb1m trong v\u00f2ng tr\u00f2n m\u00e0u cam v\u00e0 \u0111\u1ed1i chi\u1ebfu v\u1edbi \u0111\u1ec1 b\u00e0i <br\/> <\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Nh\u00ecn v\u00e0o h\u00ecnh v\u1ebd ta th\u1ea5y M = {a; 4; b; 12} <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh <b> M= {4; b; 12; a; 9} <\/b> l\u00e0 <b> sai <\/b> ,<br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span>","column":2}]}],"id_ques":39},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho h\u00ecnh v\u1ebd: <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai1/lv2/img\/D611_TB204.png' \/><\/center> <br\/> Kh\u1eb3ng \u0111\u1ecbnh A= {7; 8; 9; 11; n} l\u00e0 <b> \u0111\u00fang <\/b> hay <b> sai <\/b>? ","select":["A. \u0110\u00daNG","B. SAI"],"hint":"Quan s\u00e1t h\u00ecnh v\u1ebd c\u00e1c ph\u1ea7n t\u1eed n\u1eb1m trong v\u00f2ng tr\u00f2n m\u00e0u \u0111\u1ecf ch\u00ednh l\u00e0 c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p A","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/> Li\u1ec7t k\u00ea c\u00e1c ph\u1ea7n t\u1eed n\u1eb1m trong v\u00f2ng tr\u00f2n m\u00e0u \u0111\u1ecf v\u00e0 \u0111\u1ed1i chi\u1ebfu v\u1edbi \u0111\u1ec1 b\u00e0i <br\/> <\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Nh\u00ecn v\u00e0o h\u00ecnh v\u1ebd ta th\u1ea5y A = {7; 8; 9; 11; n} <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh <b> A= {7; 8; 9; 11; n} <\/b> l\u00e0 <b> \u0111\u00fang <\/b> <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span>","column":2}]}],"id_ques":40}],"lesson":{"save":0,"level":2}}