{"common":{"save":0,"post_id":"6529","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5657","post_id":"6529","mon_id":"1158921","chapter_id":"1158927","question":"<p>Bi\u1ec3u th\u1ee9c n&agrave;o sau \u0111&acirc;y l&agrave; \u0111a th\u1ee9c?<\/p>","options":["<strong>A. <span class=\"math-tex\">$\\dfrac{x}{2y}+1$<\/span><\/strong>","<strong>B. <span class=\"math-tex\">$x^2+0,2y$<\/span><\/strong>","<strong>C. <span class=\"math-tex\">$y+\\dfrac{1}{y}$<\/span><\/strong>","<strong>D. <\/strong><span class=\"math-tex\">$\\sqrt{x^2+1}$<\/span>"],"correct":"2","level":"1","hint":"<p>\u0110a th\u1ee9c l&agrave; t\u1ed5ng c\u1ee7a nh\u1eefng \u0111\u01a1n th\u1ee9c, m\u1ed7i \u0111\u01a1n th\u1ee9c trong t\u1ed5ng g\u1ecdi l&agrave; m\u1ed9t h\u1ea1ng t\u1eed c\u1ee7a \u0111a th\u1ee9c \u0111&oacute;.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.&nbsp;<span class=\"math-tex\">$x^2+0,2y$<\/span><\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-06-27 14:04:33","option_type":"math","len":0},{"id":"5659","post_id":"6529","mon_id":"1158921","chapter_id":"1158927","question":"<p>Bi\u1ec3u th\u1ee9c n&agrave;o <strong>kh&ocirc;ng <\/strong>l&agrave; \u0111a th\u1ee9c?<\/p>","options":["<strong>A. <span class=\"math-tex\">$x+y$<\/span><\/strong>","<strong>B. <span class=\"math-tex\">$y^2-4y+1$<\/span><\/strong>","<strong>C. <span class=\"math-tex\">$\\dfrac{x+1}{x+2}$<\/span><\/strong>","<strong>D. <span class=\"math-tex\">$\\dfrac{1}{4}x+0,2y^2$<\/span><\/strong>"],"correct":"3","level":"1","hint":"<p>\u0110a th\u1ee9c l&agrave; t\u1ed5ng c\u1ee7a nh\u1eefng \u0111\u01a1n th\u1ee9c, m\u1ed7i \u0111\u01a1n th\u1ee9c trong t\u1ed5ng g\u1ecdi l&agrave; m\u1ed9t h\u1ea1ng t\u1eed c\u1ee7a \u0111a th\u1ee9c \u0111&oacute;.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.&nbsp;<span class=\"math-tex\">$\\dfrac{x+1}{x+2}$<\/span><\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-06-27 14:06:33","option_type":"math","len":0},{"id":"5661","post_id":"6529","mon_id":"1158921","chapter_id":"1158927","question":"<p>Bi\u1ec3u th\u1ee9c n&agrave;o l&agrave; \u0111a th\u1ee9c?<\/p>","options":["<strong>A. <span class=\"math-tex\">$6x^3\\sqrt{y}$<\/span><\/strong>","<strong>B. <span class=\"math-tex\">$-3x^2y+\\dfrac{1}{x}$<\/span><\/strong>","<strong>C. <span class=\"math-tex\">$\\dfrac{1}{\\sqrt{x}+1}$<\/span><\/strong>","<strong>D. <\/strong><span class=\"math-tex\">$-xyz$<\/span>"],"correct":"4","level":"1","hint":"<p>\u0110a th\u1ee9c l&agrave; t\u1ed5ng c\u1ee7a nh\u1eefng \u0111\u01a1n th\u1ee9c, m\u1ed7i \u0111\u01a1n th\u1ee9c trong t\u1ed5ng g\u1ecdi l&agrave; m\u1ed9t h\u1ea1ng t\u1eed c\u1ee7a \u0111a th\u1ee9c \u0111&oacute;.<\/p><p>M\u1ed7i \u0111\u01a1n th\u1ee9c c\u0169ng \u0111\u01b0\u1ee3c coi l&agrave; m\u1ed9t \u0111a th\u1ee9c.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#27ae60;\"><\/span><span style=\"color:#16a085;\"><strong>D.&nbsp;<\/strong><span class=\"math-tex\">$-xyz$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-06-27 14:09:20","option_type":"math","len":0}]}