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Question Number 135778 by mathmax by abdo last updated on 15/Mar/21 | ||
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$$\mathrm{find}\:\:\mathrm{u}_{\mathrm{n}} \left(\mathrm{x}\right)\mathrm{if}\:\:\mathrm{u}_{\mathrm{n}} \left(\mathrm{x}\right)+\mathrm{u}_{\mathrm{n}+\mathrm{1}} \left(\mathrm{x}\right)=\frac{\mathrm{x}^{\mathrm{n}} }{\mathrm{n}!} \\ $$ | ||