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In DeltaABC, with usual notations, if a,...

In `DeltaABC`, with usual notations, if a,b,c are in AP then
`acos^(2)((C)/(2))+ c cos^(2)((A)/(2))=`

A

(a) `(3a)/(2)`

B

(b) `(3c)/(2)`

C

(c) `(3b)/(2)`

D

(d) `(3abc)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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