What is the sum from n=-infinity to infinity of n^2 ?

The sum from n=-infinity to infinity of n^2 is diverges

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sum from n=-infinity to infinity of n^2

n = - \infty \sum \infty n^{2}

diverges

Solution steps

n = - \infty \sum \infty n^{2}

Apply Series Divergence Test:

diverges

= diverges

\frac{x - arctan ( x )}{x ^{2}}

\int_{1}^{3} 2 x^{2} + 2 x + 4 d x

\int \frac{1}{cot ^{2} ( x )} d x

11 x + 2

\frac{d}{d x} (\frac{1}{x} + x)

What is the sum from n=-infinity to infinity of n^2 ?
The sum from n=-infinity to infinity of n^2 is diverges