Question

Find the frist two term of the sequence Sn = n square(n+2)

Answer 1

Answer:

Given Sn=n×n(n+1) which is sum of the n terms of the series.If we put 1 in place of n in the above summation we will get, S1=1×1(1+1)=1×2=2 & it's the first term.

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