{"common":{"save":0,"post_id":"5636","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6709","post_id":"5636","mon_id":"1158532","chapter_id":"1158544","question":"<p>T\u1eadp h\u1ee3p các s\u1ed1 h\u1eefu t\u1ec9 \u0111\u01b0\u1ee3c kí hi\u1ec7u là <\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\mathbb{Q}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\mathbb{N}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\mathbb{Z}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\mathbb{R}$<\/span>"],"correct":"1","level":"1","hint":"","answer":"<p>T\u1eadp h\u1ee3p các s\u1ed1 h\u1eefu t\u1ec9 \u0111\u01b0\u1ee3c kí hi\u1ec7u là <span class=\"math-tex\">$\\mathbb{Q}$<\/span> .<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>A.<\/strong> <span class=\"math-tex\">$\\mathbb{Q}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-03-27 02:03:25","option_type":"math","len":0},{"id":"6710","post_id":"5636","mon_id":"1158532","chapter_id":"1158544","question":"<p>S\u1ed1 h\u1eefu t\u1ec9 nào \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{-26}{4}?$<\/span><\/p>","options":["<strong>A. <\/strong>-13,5","<strong>B. <\/strong>13,5","<strong>C. <\/strong>6,5","<strong>D.<\/strong> -6,5"],"correct":"4","level":"1","hint":"<p>\u0110\u1ed5i phân s\u1ed1 sang phân s\u1ed1 th\u1eadp phân r\u1ed3i \u0111\u1ed5i sang s\u1ed1 th\u1eadp phân.<br \/> <\/p>","answer":"<p>Ta có: <span class=\"math-tex\">$\\dfrac{-26}{4}=\\dfrac{-13}{2}=\\dfrac{-65}{10}=-6,5$<\/span><br \/>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>D.<\/strong> -6,5<\/span><\/p><p><span style=\"color:#1abc9c;\"><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-03-27 02:05:59","option_type":"txt","len":0},{"id":"6716","post_id":"5636","mon_id":"1158532","chapter_id":"1158544","question":"<p>Nh\u1eefng phân s\u1ed1 nào b\u1eb1ng s\u1ed1 h\u1eefu t\u1ec9 3,5?<\/p>","options":["<strong>A. <\/strong><span class=\"math-tex\">$\\dfrac{14}{4}$<\/span>","<strong>B. <\/strong><span class=\"math-tex\">$\\dfrac{7}{2}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{-7}{2}$<\/span>","<strong>D. <\/strong><span class=\"math-tex\">$\\dfrac{-21}{-6}$<\/span>"],"correct":"[\"1\",\"2\",\"4\"]","level":"1","hint":"<p>\u0110\u1ed5i s\u1ed1 th\u1eadp phân sang phân s\u1ed1 \u0111\u1ec3 tìm các phân s\u1ed1 b\u1eb1ng nhau.<\/p>","answer":"<p>Ta có: <span class=\"math-tex\">$3,5 = \\dfrac{35}{10} = \\dfrac{7}{2} = \\dfrac{14}{4} = \\dfrac{-21}{-6}$<\/span><br \/>Các \u0111áp án \u0111úng là <span style=\"color:#16a085;\"> <strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{14}{4}$<\/span> ; <strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{7}{2}$<\/span> và <strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{-21}{-6}$<\/span><\/span><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"131","test":"1","date":"2022-03-28 07:43:56","option_type":"math","len":0}]}
