{"common":{"save":0,"post_id":"7939","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8415","post_id":"7939","mon_id":"1159278","chapter_id":"1159329","question":"<p>Hai \u0111\u01b0\u1eddng tr&ograve;n (O ; R)&nbsp;v&agrave; (O&#39; ; R&#39;)&nbsp;v\u1edbi R &gt; R&#39;&nbsp;c\u1eaft nhau khi:<\/p>","options":["<strong>A.<\/strong> R &ndash; R&#39; &lt; OO&#39; &lt; R + R&#39;","<strong>B.<\/strong> R&#39; &lt; OO&#39; &lt; R ","<strong>C.<\/strong> R &ndash; R&#39; &lt; 2OO&#39; &lt; R + R&#39;","<strong>D.<\/strong> R &ndash; R&#39; &lt; 3OO&#39; &lt; R + R&#39;"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong> R&nbsp;&ndash; R&#39; &lt; OO&#39; &lt; R + R&#39;.<\/span><\/p><p>Hai \u0111\u01b0\u1eddng tr&ograve;n (O ; R)&nbsp;v&agrave; (O&#39; ; R&#39;)&nbsp;v\u1edbi R &gt; R&#39;&nbsp;c\u1eaft nhau khi&nbsp;R&nbsp;&ndash; R&#39; &lt; OO&#39; &lt; R + R&#39;.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-11-08 00:58:09","option_type":"txt","len":2},{"id":"8417","post_id":"7939","mon_id":"1159278","chapter_id":"1159329","question":"<p>\u0110i\u1ec1n v&agrave;o ch\u1ed7 ch\u1ea5m: &ldquo;N\u1ebfu hai \u0111\u01b0\u1eddng tr&ograve;n c&oacute; &hellip; chung th&igrave; ta n&oacute;i \u0111&oacute; l&agrave; hai \u0111\u01b0\u1eddng tr&ograve;n ti\u1ebfp x&uacute;c nhau.&nbsp;\u0110i\u1ec3m chung g\u1ecdi l&agrave; ti\u1ebfp \u0111i\u1ec3m c\u1ee7a ch&uacute;ng&rdquo;.<\/p>","options":["<strong>A.<\/strong> duy nh\u1ea5t m\u1ed9t \u0111i\u1ec3m","<strong>B.<\/strong> \u0111&uacute;ng hai \u0111i\u1ec3m","<strong>C.<\/strong> v&ocirc; s\u1ed1 \u0111i\u1ec3m","<strong>D.<\/strong> &iacute;t nh\u1ea5t m\u1ed9t \u0111i\u1ec3m"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong> duy nh\u1ea5t m\u1ed9t \u0111i\u1ec3m.<\/span><\/p><p>N\u1ebfu hai \u0111\u01b0\u1eddng tr&ograve;n c&oacute; duy nh\u1ea5t m\u1ed9t \u0111i\u1ec3m&nbsp;chung th&igrave; ta n&oacute;i \u0111&oacute; l&agrave; hai \u0111\u01b0\u1eddng tr&ograve;n ti\u1ebfp x&uacute;c nhau.&nbsp;\u0110i\u1ec3m chung g\u1ecdi l&agrave; ti\u1ebfp \u0111i\u1ec3m c\u1ee7a ch&uacute;ng.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-11-08 01:00:03","option_type":"txt","len":2},{"id":"8418","post_id":"7939","mon_id":"1159278","chapter_id":"1159329","question":"<p>Hai \u0111\u01b0\u1eddng tr&ograve;n (O ; R)&nbsp;v&agrave; (O&#39; ; R&#39;)&nbsp;v\u1edbi R &gt; R&#39;&nbsp;ti\u1ebfp x&uacute;c ngo&agrave;i&nbsp;khi:<\/p>","options":["<strong>A.<\/strong> OO&#39; &gt; R + R&#39;","<strong>B.<\/strong> OO&#39; &lt; R + R&#39;","<strong>C.<\/strong> OO&#39; = R + R&#39;","<strong>D.<\/strong> OO&#39; = R &ndash; R&#39;"],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong> OO&#39; = R + R&#39;.<\/span><\/p><p>Hai \u0111\u01b0\u1eddng tr&ograve;n (O ; R)&nbsp;v&agrave; (O&#39; ; R&#39;)&nbsp;v\u1edbi R &gt; R&#39;&nbsp;ti\u1ebfp x&uacute;c ngo&agrave;i&nbsp;khi&nbsp;OO&#39; = R + R&#39;.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-11-08 01:02:02","option_type":"txt","len":2}]}