{"save":1,"level":1,"time":"90","total":34,"point":5,"segment":[{"id":"3690","test_id":"486","question":"<p>M\u1ec7nh \u0111\u1ec1 n&agrave;o sau \u0111&acirc;y l&agrave; sai ?<\/p>","options":["A.&nbsp;<span class=\"math-tex\">$\\int a^xdx=\\frac{a^x}{lna} +C ( 0&lt;{a\\neq 1})$<\/span>","B.&nbsp;<span class=\"math-tex\">$\\int sinx dx=coxx+C$<\/span>","C.&nbsp;<span class=\"math-tex\">$\\int \\frac{1}{x}=ln|x|+C (x\\neq0)$<\/span>","D.&nbsp;<span class=\"math-tex\">$\\int e^x dx=e^x +C$<\/span>"],"correct":"2","answer":"<p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave; : <span style=\"color:#27ae60;\"><strong>B.&nbsp;<span class=\"math-tex\">$\\int sinx dx=coxx+C$<\/span><\/strong><\/span><\/p><p><span class=\"math-tex\">$\\int sinx dx=-coxx+C$<\/span><\/p>","type":"choose","user_id":"156","test":"1","date":"2025-04-29 16:18:16"},{"id":"3691","test_id":"486","question":"<p>Cho h&agrave;m s\u1ed1&nbsp;<span class=\"math-tex\">$y=f(x)$<\/span>&nbsp;li&ecirc;n t\u1ee5c tr&ecirc;n&nbsp;<span class=\"math-tex\">$\\mathbb {R}$<\/span>&nbsp;v&agrave;&nbsp;<span class=\"math-tex\">$F(x)$<\/span>&nbsp;l&agrave; m\u1ed9t nguy&ecirc;n h&agrave;m c\u1ee7a&nbsp;<span class=\"math-tex\">$f(x)$<\/span>, bi\u1ebft&nbsp;<span class=\"math-tex\">$\\int\\limits_0^9 f(x)dx=9$<\/span>&nbsp;v&agrave;&nbsp;<span class=\"math-tex\">$F(0)= 3$<\/span>. T&iacute;nh&nbsp;<span class=\"math-tex\">$F(9)$<\/span>.<\/p>","options":["A.&nbsp;<span class=\"math-tex\">$F(9)=-12 $<\/span>","B.&nbsp;<span class=\"math-tex\">$F(9) = 6 $<\/span>","C.&nbsp;<span class=\"math-tex\">$F(9)= 12$<\/span>","D.&nbsp;<span class=\"math-tex\">$F(9)=-6$<\/span>"],"correct":"3","answer":"<p>\u0110&aacute;p &aacute;n \u0111&uacute;ng : <span style=\"color:#16a085;\"><strong>C.&nbsp;<span class=\"math-tex\">$F(9)=12$<\/span><\/strong><\/span><\/p><p>&nbsp;<span class=\"math-tex\">$\\int\\limits_0^9 f(x)dx=F(9)-F(0) =9 $<\/span>&nbsp;n&ecirc;n&nbsp;<span class=\"math-tex\">$F(9)=12 $<\/span><\/p>","type":"choose","user_id":"156","test":"3","date":"2025-04-29 16:27:41"}]}