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

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

A

`1`

B

`(-1)/(2)`

C

`(3)/(2)`

D

`(1)/(2)`

Text Solution

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The correct Answer is:
a
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