If ((x+1)^2)/(x^3+x)=A/x+(B x+C)/(x^2+1)...

If `((x+1)^2)/(x^3+x)=A/x+(B x+C)/(x^2+1)` then `sin^(- 1)(A/C)=`

A

`pi//6`

B

`pi//4`

C

`pi//3`

D

`pi//2`

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The correct Answer is:

A

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