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If 12 and 9 are respectively A.M and G.M...

If 12 and 9 are respectively A.M and G.M of two numbers, then the numbers are the roots of the equation

A

`x^(2)-24 x+81=0`

B

`x^(2)+24 x-81=0`

C

`x^(2)-81 x+24=0`

D

`x^(2)-24 x-8 I=0`

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The correct Answer is:
A
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