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cos (B+C-A)-cos(C+A-B)+cos(A+B-C)- cos (...

`cos (B+C-A)-cos(C+A-B)+cos(A+B-C)- cos (A+B+C)=`

A

`4 sin A cos B cos C `

B

`4 sin A cos B sin C `

C

`4 cos A cos B sin C`

D

`4 cos A sin B cos C `

Text Solution

Verified by Experts

The correct Answer is:
B
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