{"common":{"save":0,"post_id":"5648","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6749","post_id":"5648","mon_id":"1158532","chapter_id":"1158543","question":"<p>Trong các cách vi\u1ebft sau, cách vi\u1ebft nào sai?<\/p>","options":["<span class=\"math-tex\">$\\sqrt{3} \\in \\mathbb{Q}$<\/span>","<span class=\"math-tex\">$15 \\in \\mathbb{R}$<\/span>","<span class=\"math-tex\">$ \\dfrac{1}{2} \\in \\mathbb{Q}$<\/span>"],"correct":"1","level":"2","hint":"<p><span class=\"math-tex\">$\\mathbb{Q}$<\/span> là t\u1eadp h\u1ee3p các s\u1ed1 h\u1eefu t\u1ec9.<\/p><p><span class=\"math-tex\">$\\mathbb{R}$<\/span> là t\u1eadp h\u1ee3p các s\u1ed1 th\u1ef1c.<\/p>","answer":"<p><span class=\"math-tex\">$\\sqrt{3} \\in \\mathbb{Q}$<\/span> <span style=\"color:#e74c3c;\">Sai <\/span>vì <span class=\"math-tex\">$\\sqrt{3} $<\/span> là s\u1ed1 vô t\u1ec9, không ph\u1ea3i s\u1ed1 h\u1eefu t\u1ec9.<br \/>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><span class=\"math-tex\">$\\sqrt{3} \\in \\mathbb{Q}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"3","date":"2022-03-28 08:57:36","option_type":"math","len":0},{"id":"6750","post_id":"5648","mon_id":"1158532","chapter_id":"1158543","question":"<p>V\u1edbi ba s\u1ed1 th\u1ef1c a, b, c. N\u1ebfu a < b và b < c thì ...<\/p>","options":["a < c ","a > c ","a = c"],"correct":"1","level":"2","hint":"<p>Tính ch\u1ea5t b\u1eafc c\u1ea7u.<\/p>","answer":"<p>V\u1edbi ba s\u1ed1 th\u1ef1c a, b, c. N\u1ebfu a < b và b < c thì <span style=\"color:#16a085;\">a < c <\/span>(tính ch\u1ea5t b\u1eafc c\u1ea7u).<br \/>\u0110áp án \u0111úng là <span style=\"color:#16a085;\">a < c <\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"3","date":"2022-03-28 08:59:12","option_type":"txt","len":0},{"id":"6751","post_id":"5648","mon_id":"1158532","chapter_id":"1158543","question":"<p>S\u1ed1 \u0111\u1ed1i c\u1ee7a các s\u1ed1: 3,2 ; -5,(01) ; <span class=\"math-tex\">$\\sqrt{2}$<\/span> ; 0 l\u1ea7n l\u01b0\u1ee3t là<\/p>","options":["<strong>A.<\/strong> 3,2 ; -5,(01) ; <span class=\"math-tex\">$\\sqrt{2}$<\/span> ; 0","<strong>B.<\/strong> -3,2 ; 5,(01) ; <span class=\"math-tex\">$-\\sqrt{2}$<\/span> ; 0<br \/>\n ","<strong>C.<\/strong> 3,2 ; 5,(01) ; <span class=\"math-tex\">$\\sqrt{2}$<\/span> ; 0<br \/>\n ","<strong>D.<\/strong> -3,2 ; -5,(01) ; <span class=\"math-tex\">$-\\sqrt{2}$<\/span> ; 0"],"correct":"2","level":"2","hint":"","answer":"<p>S\u1ed1 \u0111\u1ed1i c\u1ee7a 3,2 là <span style=\"color:#16a085;\">-3,2<\/span>.<br \/>S\u1ed1 \u0111\u1ed1i c\u1ee7a -5,(01) là <span style=\"color:#16a085;\">5,(01)<\/span><br \/>S\u1ed1 \u0111\u1ed1i c\u1ee7a <span class=\"math-tex\">$\\sqrt{2}$<\/span> là <span style=\"color:#16a085;\"><span class=\"math-tex\">$-\\sqrt{2}$<\/span><\/span> <br \/>S\u1ed1 \u0111\u1ed1i c\u1ee7a 0 là <span style=\"color:#16a085;\">0<\/span>.<br \/>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>B.<\/strong> -3,2 ; 5,(01) ; <span class=\"math-tex\">$-\\sqrt{2}$<\/span> ; 0<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"3","date":"2022-03-28 09:03:05","option_type":"math","len":0}]}