{"common":{"save":0,"post_id":"7096","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5341","post_id":"7096","mon_id":"1158924","chapter_id":"1159168","question":"<p>Tính giá tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c A = <span class=\"math-tex\">$2^{-3}$<\/span><\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$A=\\dfrac{1}{6}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$A=\\dfrac{1}{8}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$A=\\dfrac{1}{9}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$A=8$<\/span>"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$A=\\dfrac{1}{8}$<\/span><\/span><\/p><p>Ta có: <span class=\"math-tex\">$A=2^{-3}=\\dfrac{1}{2^3}=\\dfrac{1}{8}$<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-03-10 04:01:11","option_type":"math","len":0},{"id":"5344","post_id":"7096","mon_id":"1158924","chapter_id":"1159168","question":"<p>Tính giá tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c <span class=\"math-tex\">$M=9^{^{\\frac{3}{2}}}$<\/span><\/p>","options":["<strong>A.<\/strong> M = 27","<strong>B.<\/strong> M = 9","<strong>C.<\/strong> M = <span class=\"math-tex\">$3\\sqrt[3]{3}$<\/span>","<strong>D.<\/strong> M = 81"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> M = 27<\/span><\/p><p><span class=\"math-tex\">$M=9^{^{\\frac{3}{2}}}=\\sqrt{9^3}=(\\sqrt{9})^3=3^3=27$<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-03-10 04:05:22","option_type":"math","len":0},{"id":"5345","post_id":"7096","mon_id":"1158924","chapter_id":"1159168","question":"<p>Tính giá tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c <span class=\"math-tex\">$E=\\bigg(\\dfrac{1}{81}\\bigg)^{-0,25}$<\/span>.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$E=\\dfrac{1}{9}$<\/span>","<strong>B.<\/strong> E = 9","<strong>C.<\/strong> <span class=\"math-tex\">$E=\\dfrac{1}{3}$<\/span>","<strong>D.<\/strong> E = 3"],"correct":"4","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> E = 3<\/span><\/p><p><span class=\"math-tex\">$E=\\bigg(\\dfrac{1}{81}\\bigg)^{-0,25}=\\bigg(\\dfrac{1}{81}\\bigg)^{-\\dfrac{1}{4}}\\n=81^{^\\frac{1}{4}}=\\sqrt[4]{81}=3$<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-03-10 04:13:27","option_type":"math","len":0}]}