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If I(n)= int(sin nx)/(cos x)dx, then I(n...

If `I_(n)= int(sin nx)/(cos x)dx`, then `I_(n)=`

A

`(-2)/(n-1)cos (n-1)x-I_(n-2)`

B

`(-2)/(n+1)cos (n-1)x-I_(n-2)`

C

`(-2)/(n-1)cos (n+1)x+1-I_(n-2)`

D

none

Text Solution

Verified by Experts

The correct Answer is:
A
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