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Using the principle of Mathematical Indu...

Using the principle of Mathematical Induction , `forall n in N`, prove that `1^2+2^2+3^2+.....n^2=(n(n+1)(2n+1))/6`

A

`(n^2(n-1)^2)/2`

B

`(n(2n+1))/4`

C

`(n(n+1)(2n+1))/6`

D

`((n+1)^2)/2`

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