13....2 tan(x/2)-x....so D) will be right i think
u can also refer this for the solution which i have referred[3]http://www.wolframalpha.com/input/?i=integration+(1-cos+x)/(1%2Bcos+x)dx[3][3]
1. If y= cosec x (cot–1x) thendy/dx
a. x/√1-x2 b) -x/√1+x2
c) x/√1+x2 d) None
5. If A and B are such events that P(A) > 0 and P(B) ≠1 then P( A/B ) is equal to
a) 1– P(A∪B)/P(B) b) P(A)/P(B) c)1-P(A)/P(B) d)1-P(B/A)
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4 Answers
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29@Gaurav..it looks like u have deleted some questions after getting the answer..it's not good ...dont repeat that in the future..
btw for ques 5 u can see this thread
http://www.targetiit.com/iit-jee-forum/posts/probablity-1982-15088.html