Question

sigma n^2 is
a)n(n+1)/2
b)n^2(n+1)/2
c)n(n^2+1)/2
d)(n(n+1)/2)^2​

Answer 1

Answer:

∑n²= 1² + 2² + 3²+…….+n²= [n(n + 1)(2n + 1)] / 6

Step-by-step explanation:

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