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In a DeltaABC , if a b and c are in AP ,...

In a `DeltaABC` , if a b and c are in AP ,then the value of `("sin"(A)/(2)"sin"(C)/(2))/("sin"(B)/(2))` is

A

1

B

2

C

`1/2`

D

`-1`

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The correct Answer is:
C
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