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If h, C and V are respectively the heigh...

If h, C and V are respectively the height, curved surface area and volume of a cone, then what is `3piVh^3 -C^2h^2 + 9V^2` equal to ?

A

0

B

`2C^2H^2`

C

`5C^2H^2`

D

`7C^2H^2`

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