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If |(a,b,a alpha+b),(b,c, b alpha+c),(a ...

If `|(a,b,a alpha+b),(b,c, b alpha+c),(a alpha+b, b alpha+c,0)|=0` then

A

a, b, c are in A.P.

B

a, b, c are in G.P.

C

a, b, c are in H.P.

D

a, c, b are in A.P.

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The correct Answer is:
B
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