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3 circles of radii a,b,c (a<b<c) touch e...

3 circles of radii `a,b,c (a

A

`(1)(sqrt(a))=(1)/(sqrt(b))+(1)/(sqrt(c ))`

B

a, b, c are in A.P.

C

`sqrt(a), sqrt(b), sqrt(c )` are in A. P.

D

`(1)/(sqrt(b))=(1)/(sqrt(a))+(1)/(sqrt(c ))`

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The correct Answer is:
A
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