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If in a triangle ABC, acos^(2).(C)/(2)+c...

If in a triangle `ABC`, `acos^(2).(C)/(2)+cos^(2).(A)/(2)=(3b)/(2)`, then the sides `a,b,c`

A

are in `G.P.`

B

are in `H.P.`

C

satsify `a+b=c`

D

are in `A.P.`

Text Solution

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The correct Answer is:
D
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