Prove that [tex] \sum^{∞}_{n=1}(-1)^{n} [/tex] diverges.(adsbygoogle = window.adsbygoogle || []).push({});

I realized that the alternating series test can only be used for convergence and not necessarily for divergence. I might have to apply a ε-δ proof (Yikes!) which I have never been good at so please help me out.

BiP

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# Alternating Series Question

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