If a cos^(2)'C/2' + c cos^(2)'A/2' = (3b...

If `a cos^(2)'C/2' + c cos^(2)'A/2' = (3b)/2` then show that the sides of the triangle are in A.P.

A

A.P.

B

G.P.

C

H.P.

D

None of these

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The correct Answer is:

A

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