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If y=sec(tan^(-1)x), then (dy)/(dx)|(x=1...

If `y=sec(tan^(-1)x)`, then `(dy)/(dx)|_(x=1)` is equal to

A

`(1)/(2)`

B

1

C

`sqrt(2)`

D

`(1)/(sqrt(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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