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If cosh x = cos theta, then tanh^2 x/2 =...

If cosh `x = cos theta,` then `tanh^2 x/2` =

A

`sin^2 theta/2`

B

`cos^2 theta/2`

C

-`tan^2 theta/2`

D

`cot^2 theta/2`

Text Solution

Verified by Experts

The correct Answer is:
C
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