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If a, b, c are distinct real numbers suc...

If `a, b, c` are distinct real numbers such that a, b, c are in A.P. and `a^2, b^2, c^2` are in H. P , then

A

`2b^(2)=-ac`

B

`4b^(2)=-ac`

C

`2b^(2)=ac`

D

`4b^(2)=ac`

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The correct Answer is:
A
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