{"common":{"save":0,"post_id":"6398","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6278","mon_id":"1158767","chapter_id":"1158861","post_id":"6398","question":"<p>Cho h&igrave;nh b&igrave;nh h&agrave;nh&nbsp;<span class=\"math-tex\">$ABCD$<\/span> c&oacute; t&acirc;m <span class=\"math-tex\">$O$<\/span>&nbsp;. Kh\u1eb3ng \u0111\u1ecbnh n&agrave;o sau \u0111&acirc;y l&agrave; \u0111&uacute;ng:<\/p>","options":["A. <span class=\"math-tex\">$\\overrightarrow{AB}-\\overrightarrow{AC}=\\overrightarrow{DA}$<\/span>","B. <span class=\"math-tex\">$\\overrightarrow{AO}+\\overrightarrow{AC}=\\overrightarrow{BO}$<\/span>","C. <span class=\"math-tex\">$\\overrightarrow{AO}-\\overrightarrow{BO}=\\overrightarrow{CD}$<\/span>","D. <span class=\"math-tex\">$\\overrightarrow{AO}+\\overrightarrow{BO}=\\overrightarrow{BD}$<\/span>"],"correct":"1","level":"3","hint":"<p>&nbsp;<span class=\"svgedit\"><svg height=\"209\" width=\"446\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"211\" id=\"canvas_background\" width=\"448\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>&lt;title&gt;&lt;\/title><image height=\"209\" id=\"svg_1\" width=\"446\" x=\"-2\" xlink:href=\"data:image\/png;base64,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\" y=\"0\"><\/image> <\/g> <\/svg><\/span><br \/><span class=\"math-tex\">$\\overrightarrow{AB}-\\overrightarrow{AC}=\\overrightarrow{DA}\\Leftrightarrow\\overrightarrow{AB}+\\overrightarrow{AD}=\\overrightarrow{AC}$<\/span>&nbsp; ( lu&ocirc;n \u0111&uacute;ng)<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>\u0110&aacute;p &aacute;n: A<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2023-02-13 02:41:46","option_type":"math","len":0},{"id":"6279","mon_id":"1158767","chapter_id":"1158861","post_id":"6398","question":"<p>Cho b\u1ed1n \u0111i\u1ec3m b\u1ea5t k&igrave; &nbsp;<span class=\"math-tex\">$A,B,C,O$<\/span> &nbsp;. \u0110\u1eb3ng th\u1ee9c n&agrave;o sau \u0111&acirc;y \u0111&uacute;ng?<\/p>","options":["A. <span class=\"math-tex\">$\\overrightarrow{OA}=\\overrightarrow{OB}-\\overrightarrow{BA}$<\/span>","B. <span class=\"math-tex\">$\\overrightarrow{OA}=\\overrightarrow{CA}-\\overrightarrow{CO}$<\/span>","C. <span class=\"math-tex\">$\\overrightarrow{AB}=\\overrightarrow{AC}+\\overrightarrow{BC}$<\/span>","D. <span class=\"math-tex\">$\\overrightarrow{AB}=\\overrightarrow{OB}+\\overrightarrow{OA}$<\/span>"],"correct":"2","level":"3","hint":"<p>&nbsp;<span class=\"math-tex\">$\\overrightarrow{OA}=\\overrightarrow{CA}-\\overrightarrow{CO}$<\/span> ( \u0111&uacute;ng v&igrave; theo quy t\u1eafc tr\u1eeb 3 \u0111i\u1ec3m)<br \/><span class=\"math-tex\">$\\overrightarrow{OA}=\\overrightarrow{OB}-\\overrightarrow{BA}\\Leftrightarrow \\overrightarrow{OA}-\\overrightarrow{OB}=-\\overrightarrow{BA}\\Leftrightarrow\\overrightarrow{OA}-\\overrightarrow{OB}=\\overrightarrow{AB}\\Leftrightarrow\\overrightarrow{BA}=\\overrightarrow{AB}$<\/span>&nbsp; (v&ocirc; l&iacute;)<br \/><span class=\"math-tex\">$\\overrightarrow{AB}=\\overrightarrow{AC}+\\overrightarrow{BC}\\Leftrightarrow \\overrightarrow{AB}-\\overrightarrow{AC}=\\overrightarrow{BC}\\Leftrightarrow\\overrightarrow{BC}=\\overrightarrow{CB}$<\/span>&nbsp;(v&ocirc; l&iacute;)<br \/><span class=\"math-tex\">$\\overrightarrow{AB}=\\overrightarrow{OA}+\\overrightarrow{OB}\\Leftrightarrow \\overrightarrow{AB}-\\overrightarrow{OB}=\\overrightarrow{OA}\\Leftrightarrow\\overrightarrow{AO}=\\overrightarrow{OA}$<\/span>&nbsp; (v&ocirc; l&iacute;)<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>\u0110&aacute;p &aacute;n: &nbsp;B<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2023-02-13 02:51:15","option_type":"math","len":0},{"id":"6280","mon_id":"1158767","chapter_id":"1158861","post_id":"6398","question":"<p>Cho h&igrave;nh b&igrave;nh h&agrave;nh&nbsp;<span class=\"math-tex\">$ABCD$<\/span> c&oacute; t&acirc;m&nbsp;<span class=\"math-tex\">$O$<\/span> &nbsp;. V&eacute;c t\u01a1 <span class=\"math-tex\">$\\overrightarrow{AO}-\\overrightarrow{DO}$<\/span>&nbsp; b\u1eb1ng v&eacute;c t\u01a1 n&agrave;o trong c&aacute;c v&eacute;c t\u01a1 sau?<\/p>","options":["A. <span class=\"math-tex\">$\\overrightarrow{BA}$<\/span>","B. <span class=\"math-tex\">$\\overrightarrow{BC}$<\/span>","C. <span class=\"math-tex\">$\\overrightarrow{DC}$<\/span>","D. <span class=\"math-tex\">$\\overrightarrow{AC}$<\/span>"],"correct":"2","level":"3","hint":"<p><span class=\"svgedit\"><svg height=\"209\" width=\"446\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"211\" id=\"canvas_background\" width=\"448\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>&lt;title&gt;&lt;\/title><image height=\"209\" id=\"svg_1\" width=\"446\" x=\"0\" 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y=\"-0.5\"><\/image> <\/g> <\/svg><\/span><\/p><p><span class=\"math-tex\">$\\overrightarrow{AO}-\\overrightarrow{DO}=\\overrightarrow{AD}=\\overrightarrow{BC}$<\/span><\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>\u0110&aacute;p &aacute;n: B<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2023-02-13 02:55:54","option_type":"math","len":0}]}