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int(0)^(pi/2) (sin x dx)/(1+ cos^2 x ) i...

`int_(0)^(pi/2) (sin x dx)/(1+ cos^2 x )` is

A

`pi`

B

`pi/3`

C

`pi/2`

D

`pi/4`

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PREMIERS PUBLISHERS-MODEL QUESTION PAPER -1-Part -IV
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  12. If a discrete random variable can take only the values 0,1,2,3, the p...

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  18. Let S=Q-(-1) and is defined in S as a ** b =a+b-ab for all a,b, in G. ...

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