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If sin^(-1)(a-a^(2)/3+a^(3)/9+…..)+cos^(...

If `sin^(-1)(a-a^(2)/3+a^(3)/9+…..)+cos^(-1)(1+b+b^(2)+…..)=pi/2`, then

A

`b=(2a-3)/(3a)`

B

`b=(3a-2)/(2a)`

C

`a=3/(2-3b)`

D

`a=2/(3-2b)`

Text Solution

Verified by Experts

The correct Answer is:
A, C
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