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

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

A

`(1)/(2)`

B

2

C

`(1)/(sqrt2)`

D

`sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
C
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