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int(0)^(pi//2)(1)/(4cos^(2)x+9sin^(2)x)d...

`int_(0)^(pi//2)(1)/(4cos^(2)x+9sin^(2)x)dx=`

A

`pi//2`

B

`pi//10`

C

`pi//5`

D

`pi//2`

Text Solution

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