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For 0le|x|lesqrt(2), if cos^(-1)(x^(2)-(...

For `0le|x|lesqrt(2)`, if `cos^(-1)(x^(2)-(x^(4))/(2)+(x^(6))/(4)-…)+sin^(-1)(x-(x^(2))/(2)+(x^(3))/(4))-…)=(pi)/(2)`, then x=

A

`(-1)/(2)`

B

`(1)/(2)`

C

`-1`

D

`1`

Text Solution

Verified by Experts

The correct Answer is:
D
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