{"common":{"save":0,"post_id":"6526","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5656","post_id":"6526","mon_id":"1158921","chapter_id":"1158927","question":"<p>Bi\u1ec3u th\u1ee9c n&agrave;o sau \u0111&acirc;y <strong>kh&ocirc;ng<\/strong> ph\u1ea3i&nbsp;l&agrave; \u0111\u01a1n th\u1ee9c?<\/p>","options":["<strong>A.<\/strong> x&sup2;y","<strong>B.<\/strong> x + y","<strong>C.<\/strong> 0","<strong>D.<\/strong> <span class=\"math-tex\">$\\sqrt{2}$<\/span>x"],"correct":"2","level":"1","hint":"<p>\u0110\u01a1n th\u1ee9c l&agrave; bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 ch\u1ec9 g\u1ed3m m\u1ed9t s\u1ed1 ho\u1eb7c m\u1ed9t bi\u1ebfn ho\u1eb7c c&oacute; d\u1ea1ng t&iacute;ch c\u1ee7a nh\u1eefng s\u1ed1 v&agrave; bi\u1ebfn.<\/p>","answer":"<p>Bi\u1ec3u th\u1ee9c&nbsp;<strong>kh&ocirc;ng<\/strong> ph\u1ea3i&nbsp;l&agrave; \u0111\u01a1n th\u1ee9c&nbsp;l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> x + y.<\/span><\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"0","date":"2023-06-27 14:03:12","option_type":"math","len":0},{"id":"5658","post_id":"6526","mon_id":"1158921","chapter_id":"1158927","question":"<p>Bi\u1ec3u th\u1ee9c n&agrave;o sau \u0111&acirc;y <strong>kh&ocirc;ng <\/strong>ph\u1ea3i&nbsp;l&agrave; \u0111\u01a1n th\u1ee9c?<\/p>","options":["<strong>A.<\/strong> &ndash;x","<strong>B. <\/strong><span class=\"math-tex\">$\\sqrt{xy}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\sqrt{5}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{x}{2}$<\/span>"],"correct":"2","level":"1","hint":"<p>\u0110\u01a1n th\u1ee9c l&agrave; bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 ch\u1ec9 g\u1ed3m m\u1ed9t s\u1ed1 ho\u1eb7c m\u1ed9t bi\u1ebfn ho\u1eb7c c&oacute; d\u1ea1ng t&iacute;ch c\u1ee7a nh\u1eefng s\u1ed1 v&agrave; bi\u1ebfn.<\/p>","answer":"<p>Bi\u1ec3u th\u1ee9c&nbsp;<strong>kh&ocirc;ng <\/strong>ph\u1ea3i&nbsp;l&agrave; \u0111\u01a1n th\u1ee9c&nbsp;l&agrave;&nbsp; <span style=\"color:#16a085;\">&nbsp;&nbsp;<strong>B.&nbsp;<\/strong><span class=\"math-tex\">$\\sqrt{xy}$<\/span>.<\/span><\/p><p>(v&igrave; c&aacute;c bi\u1ebfn n\u1eb1m trong d\u1ea5u c\u0103n b\u1eadc hai)<\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"0","date":"2023-06-27 14:05:37","option_type":"math","len":0},{"id":"5660","post_id":"6526","mon_id":"1158921","chapter_id":"1158927","question":"<p>Bi\u1ec3u th\u1ee9c n&agrave;o sau \u0111&acirc;y <strong>kh&ocirc;ng <\/strong>ph\u1ea3i&nbsp;l&agrave; \u0111\u01a1n th\u1ee9c?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{xy}$<\/span>","<strong>B.<\/strong> x.2y","<strong>C.<\/strong> <span class=\"math-tex\">$-\\dfrac{xy}{5}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$(1+\\sqrt{2})$<\/span>xy&sup2;"],"correct":"1","level":"1","hint":"<p>\u0110\u01a1n th\u1ee9c l&agrave; bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 ch\u1ec9 g\u1ed3m m\u1ed9t s\u1ed1 ho\u1eb7c m\u1ed9t bi\u1ebfn ho\u1eb7c c&oacute; d\u1ea1ng t&iacute;ch c\u1ee7a nh\u1eefng s\u1ed1 v&agrave; bi\u1ebfn.<\/p>","answer":"<p>Bi\u1ec3u th\u1ee9c&nbsp;<strong>kh&ocirc;ng <\/strong>ph\u1ea3i&nbsp;l&agrave; \u0111\u01a1n th\u1ee9c l&agrave;&nbsp; &nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{2}{xy}$<\/span><\/span><\/p><p>(v&igrave; c&aacute;c bi\u1ebfn n\u1eb1m \u1edf m\u1eabu)<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-06-27 14:07:54","option_type":"math","len":0}]}