In triangle ABC if a, b, c are in A.P., ...

In triangle ABC if a, b, c are in A.P., then the value of `(sin.(A)/(2)sin.(C)/(2))/(sin.(B)/(2))` =

A

1

B

`(1)/(2)`

C

2

D

`-1`

Verified by Experts

The correct Answer is:

B

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