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log [ cot (theta //2)] =...

log `[ cot (theta //2)]` =

A

Sinh`""^(-1) (cos theta)`

B

2 Tanh`""^(-1)(cos theta)`

C

Tanh`""^(-1) (cos theta)`

D

Coth`""^(-1) (cos theta)`

Text Solution

Verified by Experts

The correct Answer is:
C
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