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If sin^(-1)x + tan ^(-1) x = (pi)/(2), t...

If `sin^(-1)x + tan ^(-1) x = (pi)/(2)`, then prove that
`2x^(2) + 1 = sqrt(5)`

A

`sqrt(5)`

B

`(sqrt(5)-1)/(2)`

C

2

D

`(sqrt(5)+1)/(2)`

Text Solution

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The correct Answer is:
A
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