{"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 câu \u0111úng<\/p><p>V\u1edbi m, n ∈ N và x ∈ Q, ta có <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 nhân hai l\u0169y th\u1eeba cùng c\u01a1 s\u1ed1 ta gi\u1eef nguyên c\u01a1 s\u1ed1 và c\u1ed9ng các s\u1ed1 m\u0169.<\/p>","answer":"<p>Khi nhân hai l\u0169y th\u1eeba cùng c\u01a1 s\u1ed1 ta gi\u1eef nguyên c\u01a1 s\u1ed1 và c\u1ed9ng các s\u1ed1 m\u0169.<\/p><p>V\u1edbi m, n ∈ N và x ∈ Q, ta có <span class=\"math-tex\">$x^m.x^n=x^{m+n}$<\/span><\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong> A.<\/strong> <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 ∈ N , m <span class=\"math-tex\">$\\ge$<\/span> n, x ∈ Q, x <span class=\"math-tex\">$\\ne$<\/span> 0<\/p><p>Ta có <span class=\"math-tex\">$x^m:x^n=$<\/span><input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/><\/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 ∈ N , m <span class=\"math-tex\">$\\ge$<\/span> n, x ∈ Q, x <span class=\"math-tex\">$\\ne$<\/span> 0 ta có <span class=\"math-tex\">$x^m:x^n=$<\/span><span class=\"math-tex\">$x^{m-n}$<\/span><\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>B.<\/strong> <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 thích h\u1ee3p vào ô tr\u1ed1ng<\/p><p>V\u1edbi m\u1ecdi s\u1ed1 h\u1eefu t\u1ec9 <span class=\"math-tex\">$x \\ne 0$<\/span> , ta có<\/p><p><span class=\"math-tex\">$x^0=$<\/span> <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/p>","options":"","correct":["[\"1\"]"],"level":"1","hint":"<p>Quy \u01b0\u1edbc: <span class=\"math-tex\">$x^0=1$<\/span> v\u1edbi <span class=\"math-tex\">$x \\ne 0$<\/span>.<\/p>","answer":"<p>V\u1edbi m\u1ecdi s\u1ed1 h\u1eefu t\u1ec9 <span class=\"math-tex\">$x \\ne 0$<\/span> , ta có : <span class=\"math-tex\">$x^0=$<\/span> 1 .<\/p><p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n là <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"}]}
