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If m is the A.M of two distict real numb...

If m is the A.M of two distict real numbers l and n `(l, n gt 1)`and `G_1,G_2 and G_3` are three geomatric means between l and n, then `(G_1)^4+2(G_2)^4+(G_3)^4` equals

A

`4 lmn^(2)`

B

`4 l^(2)m^(2)n^(2)`

C

`4 l^(2)mn`

D

`4 lm^(2)n`

Text Solution

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The correct Answer is:
D
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