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Question Number 147417 by tabata last updated on 20/Jul/21

$$howcanfindtaylorseriesoff\left(z\right)=cot\left(z\right)whenz=5\pi$$

Answered by mathmax by abdo last updated on 21/Jul/21

$$\mathrm{f}\left(\mathrm{z}\right)=\sum _{\mathrm{n}=0}^{\mathrm{\infty }}\frac{{\mathrm{f}}^{\left(\mathrm{n}\right)}\left(5\pi \right)}{\mathrm{n}!}{(\mathrm{z}-5\pi )}^{\mathrm{n}}$$$$\mathrm{f}\left(\mathrm{z}\right)=\frac{1}{\mathrm{tanz}}\Rightarrow \mathrm{f}\left(5\pi \right)\mathrm{is}\mathrm{not}\mathrm{defined}..!$$

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