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If cos(alpha+beta)sin(gamma +delta) = co...

If `cos(alpha+beta)sin(gamma +delta) = cos(alpha-beta)sin(gamma-delta)`, then the value of `cotalpha*cotbeta.cotgamma `is :

A

`cotalpha`

B

`cotbeta`

C

`cotdelta`

D

`cot(alpha+beta+gamma+delta)`

Text Solution

Verified by Experts

The correct Answer is:
C
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