(1) Show that |ln 2 - Ʃ(adsbygoogle = window.adsbygoogle || []).push({}); ^{N}_{n=1}((-1)^{n-1})(1/n)| ≤ 1/(N+1)

(2) Show that |sin x - Ʃ^{N}_{n=0}((-1)^{n})/(2n+1)!| ≤ |x|^{2N+2}/(2N+2)!

I really don't know where to start. should I change the sums to series first then work my way through? Please help!

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# Series Proof help!

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