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If cot^(-1)(x-(x^(2))/(2)+(x^(3))/(4)-……...

If `cot^(-1)(x-(x^(2))/(2)+(x^(3))/(4)-…………..)+tan^(-1)(x^(2)-(x^(4))/(2)+(x^(6))/(4)-……..)=(pi)/(2)" for "0lt |x| lt sqrt2`, then x is equal to

A

0 only

B

1 only

C

0, 1 both

D

None of these

Text Solution

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The correct Answer is:
B
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