{"common":{"save":0,"post_id":"5818","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8599","post_id":"5818","mon_id":"1158532","chapter_id":"1158660","question":"<p>N\u1ed1i bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 v\u1edbi các ý mà chúng bi\u1ec3u th\u1ecb<\/p>","options":[["1) T\u1ed5ng c\u1ee7a a bình ph\u01b0\u01a1ng và b bình ph\u01b0\u01a1ng","2) Hi\u1ec7u c\u1ee7a a bình ph\u01b0\u01a1ng và b bình ph\u01b0\u01a1ng","3) Tích c\u1ee7a a và b"],["N = <span class=\"math-tex\">$a^2-b^2$<\/span>","G = <span class=\"math-tex\">$ab$<\/span>","C = <span class=\"math-tex\">$a^2+b^2$<\/span>"],["C = <span class=\"math-tex\">$a^2+b^2$<\/span>","N = <span class=\"math-tex\">$a^2-b^2$<\/span>","G = <span class=\"math-tex\">$ab$<\/span>"]],"correct":[1,2,0],"level":"1","hint":"","answer":"<p>\u0110áp án \u0111úng c\u1ea7n n\u1ed1i là<\/p><p><span style=\"color:#16a085;\">1) T\u1ed5ng c\u1ee7a a bình ph\u01b0\u01a1ng và b bình ph\u01b0\u01a1ng và C = <span class=\"math-tex\">$a^2+b^2$<\/span><\/span><\/p><p><span style=\"color:#16a085;\">2) Hi\u1ec7u c\u1ee7a a bình ph\u01b0\u01a1ng và b bình ph\u01b0\u01a1ng và N = <span class=\"math-tex\">$a^2-b^2$<\/span><\/span><\/p><p><span style=\"color:#16a085;\">3) Tích c\u1ee7a a và b và G = <span class=\"math-tex\">$ab$<\/span><\/span><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"131","test":"1","date":"2022-06-02 11:11:36"},{"id":"8600","post_id":"5818","mon_id":"1158532","chapter_id":"1158660","question":"<p>Bi\u1ec3u th\u1ee9c nào sau \u0111ây là \u0111\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$2x+3$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3y}{4}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$1,2x\u00b2$<\/span>","<strong>D. <\/strong><span class=\"math-tex\">$\\dfrac{-3}{z} $<\/span>"],"correct":"[\"2\",\"3\"]","level":"1","hint":"<p>\u0110\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn là bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 ch\u1ec9 g\u1ed3m <span style=\"color:#2980b9;\">m\u1ed9t s\u1ed1<\/span>, <span style=\"color:#2980b9;\">m\u1ed9t bi\u1ebfn<\/span> ho\u1eb7c <span style=\"color:#2980b9;\">tích c\u1ee7a các s\u1ed1 v\u1edbi l\u0169y th\u1eeba t\u1ef1 nhiên c\u1ee7a m\u1ed9t bi\u1ebfn<\/span>.<\/p>","answer":"<p>Các \u0111\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn là: <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3y}{4}$<\/span> <\/span>và <span style=\"color:#16a085;\"><strong>C.<\/strong> <span class=\"math-tex\">$1,2x\u00b2$<\/span><\/span><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"131","test":"3","date":"2022-06-02 11:14:10","option_type":"math","len":0},{"id":"8601","post_id":"5818","mon_id":"1158532","chapter_id":"1158660","question":"<p>Dãy nào sau \u0111ây g\u1ed3m toàn các \u0111\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$-3,4$<\/span> ; <span class=\"math-tex\">$3y-1$<\/span> ; <span class=\"math-tex\">$x^3$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$y$<\/span> ; <span class=\"math-tex\">$\\sqrt{x}$<\/span> ; <span class=\"math-tex\">$-0,1x^3$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$-2xy$<\/span> ; <span class=\"math-tex\">$x$<\/span> ; <span class=\"math-tex\">$\\dfrac{7}{3}y^5$<\/span>","<strong>D. <\/strong><span class=\"math-tex\">$-\\sqrt{2}x$<\/span> ; <span class=\"math-tex\">$3y^2$<\/span> ; <span class=\"math-tex\">$0$<\/span>"],"correct":"4","level":"1","hint":"<p>\u0110\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn là bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 ch\u1ec9 g\u1ed3m m\u1ed9t s\u1ed1, m\u1ed9t bi\u1ebfn ho\u1eb7c tích c\u1ee7a các s\u1ed1 v\u1edbi l\u0169y th\u1eeba t\u1ef1 nhiên c\u1ee7a m\u1ed9t bi\u1ebfn.<\/p>","answer":"<p><strong>A.<\/strong> <span class=\"math-tex\">$-3,4$<\/span> ; <span class=\"math-tex\">$3y-1$<\/span> ; <span class=\"math-tex\">$x^3$<\/span> <span style=\"color:#e74c3c;\">sai <\/span>vì <span class=\"math-tex\">$3y-1$<\/span> không là \u0111\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn<\/p><p><strong>B.<\/strong> <span class=\"math-tex\">$y$<\/span> ; <span class=\"math-tex\">$\\sqrt{x}$<\/span> ; <span class=\"math-tex\">$-0,1x^3$<\/span> <span style=\"color:#e74c3c;\">sai<\/span> vì <span class=\"math-tex\">$\\sqrt{x}$<\/span> không là \u0111\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn<\/p><p><strong>C.<\/strong> <span class=\"math-tex\">$-2xy$<\/span> ; <span class=\"math-tex\">$x$<\/span> ; <span class=\"math-tex\">$\\dfrac{7}{3}y^5$<\/span> <span style=\"color:#e74c3c;\">sai<\/span> vì <span class=\"math-tex\">$-2xy$<\/span> không là \u0111\u01a1n th\u1ee9c m\u1ed9t bi\u1ebfn<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>D. <\/strong><span class=\"math-tex\">$-\\sqrt{2}x$<\/span> ; <span class=\"math-tex\">$3y^2$<\/span> ; <span class=\"math-tex\">$0$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-02 11:15:43","option_type":"math","len":0}]}