a) \(\frac{n(n-1)(2n+4)}{6}\)
b) \(\frac{n(n+1)(2n-5)}{6}\)
c) \(\frac{(n-2)(2n-5)}{3}\)
d) \(\frac{n(n+1)(2n-5)}{3}\)
Find the sum to n terms of the series whose nth term is n (n-2).
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answerhappygod
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Find the sum to n terms of the series whose nth term is n (n-2).
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