If I(n)=int(0)^(pi) e^(x)(sinx)^(n)dx, t...

If `I_(n)=int_(0)^(pi) e^(x)(sinx)^(n)dx`, then `(I_(3))/(I_(1))` is equal to

A

`(3)/(5)`

B

`(1)/(5)`

C

1

D

`(2)/(5)`

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A

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