{"common":{"save":0,"post_id":"7816","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7813","post_id":"7816","mon_id":"1159278","chapter_id":"1159327","question":"<p>R&uacute;t g\u1ecdn bi\u1ec3u th\u1ee9c&nbsp;<span class=\"math-tex\">$A=\\dfrac{\\sqrt[3]{4}+\\sqrt[3]{2}+2}{\\sqrt[3]{2}+1+\\sqrt[3]{4}}$<\/span>&nbsp;ta \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 l&agrave;:<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\sqrt[3]{2}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\sqrt[3]{4}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$2$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\sqrt[3]{3}$<\/span>"],"correct":"1","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\sqrt[3]{2}$<\/span>.<\/span><\/p><p><span class=\"math-tex\">$A=\\dfrac{\\sqrt[3]{4}+\\sqrt[3]{2}+2}{\\sqrt[3]{2}+1+\\sqrt[3]{4}}$<\/span>&nbsp;=&nbsp;<span class=\"math-tex\">$\\dfrac{\\sqrt[3]{4}+\\sqrt[3]{2}+\\sqrt[3]{8}}{\\sqrt[3]{2}+1+\\sqrt[3]{4}}$<\/span>&nbsp;=&nbsp;<span class=\"math-tex\">$\\dfrac{\\sqrt[3]{2}(\\sqrt[3]{2}+1+\\sqrt[3]{4})}{\\sqrt[3]{2}+1+\\sqrt[3]{4}}$<\/span>&nbsp;=&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\sqrt[3]{2}$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-16 02:17:41","option_type":"math","len":0},{"id":"7815","post_id":"7816","mon_id":"1159278","chapter_id":"1159327","question":"<p>R&uacute;t g\u1ecdn bi\u1ec3u th\u1ee9c B =&nbsp;<span class=\"math-tex\">$-4\\sqrt{\\dfrac{-25}{-16}}+5\\sqrt{-\\dfrac{-9}{25}}$<\/span> ta \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 l&agrave;:<\/p>","options":["<strong>A.<\/strong> 2","<strong>B.<\/strong> &ndash;2","<strong>C.<\/strong> 1","<strong>D.<\/strong> &ndash;1"],"correct":"2","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;&ndash;2.<\/span><\/p><p>B =&nbsp;<span class=\"math-tex\">$-4\\sqrt{\\dfrac{-25}{-16}}+5\\sqrt{-\\dfrac{-9}{25}}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$-4.\\dfrac{5}{4}+5.\\dfrac{3}{5}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$-2$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-16 02:22:20","option_type":"txt","len":1},{"id":"7816","post_id":"7816","mon_id":"1159278","chapter_id":"1159327","question":"<p>R&uacute;t g\u1ecdn bi\u1ec3u th\u1ee9c A =&nbsp;<span class=\"math-tex\">$0,5\\sqrt{0,04}+5\\sqrt{0,36}$<\/span> ta \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 l&agrave;:<\/p>","options":["<strong>A.<\/strong> 3,2","<strong>B.<\/strong> 3,1","<strong>C.<\/strong> 3,3","<strong>D.<\/strong> 3,4"],"correct":"2","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> 3,1.<\/span><\/p><p>A =&nbsp;<span class=\"math-tex\">$0,5\\sqrt{0,04}+5\\sqrt{0,36}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$0,5.0,2+5,0,6$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$0,1+3$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$3,1$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-16 02:25:07","option_type":"txt","len":0}]}