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f-x-e-nx-cos-x-Determinate-f-n-x-




Question Number 166812 by mathocean1 last updated on 28/Feb/22
f(x)=e^(nx) cos(x).  Determinate f^((n)) (x).
$${f}\left({x}\right)={e}^{{nx}} {cos}\left({x}\right). \\ $$$${Determinate}\:{f}^{\left({n}\right)} \left({x}\right). \\ $$

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