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Two A.M.'s A(1) and A(2), two G.M.'s G(1...

Two A.M.'s `A_(1)` and `A_(2)`, two G.M.'s `G_(1)` and `G_(2)` and two H.M.'s `H_(1)` and `H_(2)` are inserted between any two numbers , then `H_(1)^(-1)+ H_(2)^(-1)` equals `:`

A

`A_(1)^(-1) + A_(2)^(-2)`

B

`G_(1)^(-1) + G_(2)^(-2)`

C

`(G_(1) G_(2))/( A_(1) + A_(2))`

D

`(A_(1) + A_(2))/( G_(1) G_(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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