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If theta in ((-pi)/(4), (pi)/(4)) and x=...

If `theta in ((-pi)/(4), (pi)/(4)) and x=log_(e )[cot((pi)/(4)+theta)]`
then prove that
`(i) cosh x= sec 2theta" " (ii) sinh x=-tan 2theta`

A

`tan(2theta)`

B

Cot`2theta`

C

`-"Tan"2theta`

D

`-"Cot"2theta`

Text Solution

Verified by Experts

The correct Answer is:
C
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