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

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

A

are in G.P.

B

are in H.P.

C

satisfy a+b=c

D

are in A.P.

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HIMALAYA PUBLICATION-MEASUREMENT OF ANGLES, TRIGONOMETRIC RATIOS AND RELATION BETWEEN SIDES AND ANGLES OF A TRIANGLE-QUESTION BANK
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