{"common":{"save":0,"post_id":"5650","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6821","post_id":"5650","mon_id":"1158532","chapter_id":"1158544","question":"<p>Ch\u1ecdn c&acirc;u \u0111&uacute;ng<\/p><p>V\u1edbi m, n&nbsp;&isin; N v&agrave; x&nbsp;&isin; Q, ta c&oacute;&nbsp;&nbsp;<span class=\"math-tex\">$x^m.x^n=$<\/span><\/p>","options":["<strong>A. <\/strong><span class=\"math-tex\">$x^{m+n}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$x^{m-n}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$x^{m.n}$<\/span>","<strong>D. <\/strong><span class=\"math-tex\">$x^{m:n}$<\/span>"],"correct":"1","level":"1","hint":"<p>Khi nh&acirc;n hai l\u0169y th\u1eeba c&ugrave;ng c\u01a1 s\u1ed1 ta gi\u1eef nguy&ecirc;n c\u01a1 s\u1ed1 v&agrave; c\u1ed9ng c&aacute;c s\u1ed1 m\u0169.<\/p>","answer":"<p>Khi nh&acirc;n hai l\u0169y th\u1eeba c&ugrave;ng c\u01a1 s\u1ed1 ta gi\u1eef nguy&ecirc;n c\u01a1 s\u1ed1 v&agrave; c\u1ed9ng c&aacute;c s\u1ed1 m\u0169.<\/p><p>V\u1edbi m, n&nbsp;&isin; N v&agrave; x&nbsp;&isin; Q, ta c&oacute;&nbsp;&nbsp;<span class=\"math-tex\">$x^m.x^n=x^{m+n}$<\/span><\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>&nbsp;A.<\/strong>&nbsp;<span class=\"math-tex\">$x^{m+n}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-03-31 09:52:37","option_type":"math","len":0},{"id":"6823","post_id":"5650","mon_id":"1158532","chapter_id":"1158544","question":"<p>V\u1edbi m, n&nbsp;&isin; N , m&nbsp;<span class=\"math-tex\">$\\ge$<\/span>&nbsp;n, x&nbsp;&isin; Q, x&nbsp;<span class=\"math-tex\">$\\ne$<\/span>&nbsp;0<\/p><p>Ta c&oacute;&nbsp;&nbsp;<span class=\"math-tex\">$x^m:x^n=$<\/span>&lt;input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/&gt;&lt;\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$x^{m+n}$<\/span>","<strong>B. <\/strong><span class=\"math-tex\">$x^{m-n}$<\/span>","<strong>C. <\/strong><span class=\"math-tex\">$x^{m.n}$<\/span>","<strong>D. <\/strong><span class=\"math-tex\">$x^{m:n}$<\/span>"],"correct":"2","level":"1","hint":"","answer":"<p>V\u1edbi m, n&nbsp;&isin; N , m&nbsp;<span class=\"math-tex\">$\\ge$<\/span>&nbsp;n, x&nbsp;&isin; Q, x&nbsp;<span class=\"math-tex\">$\\ne$<\/span>&nbsp;0 ta c&oacute;&nbsp;<span class=\"math-tex\">$x^m:x^n=$<\/span><span class=\"math-tex\">$x^{m-n}$<\/span><\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$x^{m-n}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"3","date":"2022-03-31 09:56:00","option_type":"math","len":0},{"id":"6844","post_id":"5650","mon_id":"1158532","chapter_id":"1158544","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o &ocirc; tr\u1ed1ng<\/p><p>V\u1edbi m\u1ecdi s\u1ed1 h\u1eefu t\u1ec9&nbsp;<span class=\"math-tex\">$x \\ne 0$<\/span>&nbsp;, ta c&oacute;<\/p><p><span class=\"math-tex\">$x^0=$<\/span>&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&lt;\/p>","options":"","correct":["[\"1\"]"],"level":"1","hint":"<p>Quy \u01b0\u1edbc:&nbsp; &nbsp;<span class=\"math-tex\">$x^0=1$<\/span>&nbsp; v\u1edbi&nbsp;&nbsp;<span class=\"math-tex\">$x \\ne 0$<\/span>.<\/p>","answer":"<p>V\u1edbi m\u1ecdi s\u1ed1 h\u1eefu t\u1ec9&nbsp;<span class=\"math-tex\">$x \\ne 0$<\/span>&nbsp;, ta c&oacute; :&nbsp;&nbsp;<span class=\"math-tex\">$x^0=$<\/span>&nbsp;1 .<\/p><p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n l&agrave;&nbsp; <span style=\"color:#16a085;\">1<\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2022-04-03 02:15:16"}]}