If sinalpha=1/sqrt5 and sinbeta=3/5 , th...

If `sinalpha=1/sqrt5 and sinbeta=3/5` , then `beta-alpha` lies in

A

`[0, pi]`

B

`[pi//2, 3pi//4]`

C

`[3pi//4, pi]`

D

`[pi, 5pi//4]`

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The correct Answer is:

A, C

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