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Which of the following is true in a tria...

Which of the following is true in a triangle `ABC?`

A

`(b + c) sin.(B-C)/(2) = 2a cos.(A)/(2)`

B

`(b+c) cos.(A)/(2) = 2a sin. (B-C)/(2)`

C

`(b-c)cos.(A)/(2) = a sin.(B-C)/(2)`

D

`(b-c)sin.(B-C)/(2) = 2a cos.(A)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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