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If (1)/(2) lt |x| lt 1, then which of th...

If `(1)/(2) lt |x| lt 1`, then which of the following is not defined ?

A

`sin^(-1)x`

B

`tan^(-1)x`

C

`sec^(-1)x`

D

`cos^(-1)x`

Text Solution

Verified by Experts

The correct Answer is:
C
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