Which of the following is not true, wher...

Which of the following is not true, where A, G, H are the A.M, G.M, H.M, of a and b respectively(a, b > 0)

A

`A = (a + b )/(2)`

B

`G = sqrt (ab)`

C

`H = (2 ab )/( a +b)`

D

A = GH.

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The correct Answer is:

D

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