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a, b, c ar the length of sides BC, CA, ...

a, b, c ar the length of sides BC, CA, AB respectively of `DeltaABC` satisfying `log(1+(c )/(a))+log a-log b=log2`.
Also the quadratic equation `a(1-x^(2))+2bx+c(1+x^(2))=0` has two equal roots.
Q. a, b, c are in :

A

A.P.

B

G.P.

C

H.P.

D

None

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The correct Answer is:
A
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