In a triangle ABC,if acos²C/2 + cCos²A/2 = 3b/2 then a,b,c are in
(A) A.P
(B) G.P
(C) H.P
(D) A.G.P
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Answer:
D) A.G.P
Step-by-step explanation:
D) A.G.PTs this is a correct answers a brainlist matk me
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