If a,b,c are in A.P. and a^(2) , b^(2) ,...

If a,b,c are in A.P. and `a^(2) , b^(2) , c^(2) ` are in H.P. , then `:`

A

`a=b=c`

B

`2b=3a+c`

C

`b^(2)=sqrt((ac)/(8))`

D

None of these

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