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find-the-sequence-u-n-wich-verify-u-n-u-n-1-2-n-give-a-equivalent-of-u-n-n-




Question Number 142988 by mathmax by abdo last updated on 08/Jun/21
find the sequence u_n wich verify u_n +u_(n+1) =(2/( (āˆšn)))  give a equivalent of u_n   (nā†’āˆž)
$$\mathrm{find}\:\mathrm{the}\:\mathrm{sequence}\:\mathrm{u}_{\mathrm{n}} \mathrm{wich}\:\mathrm{verify}\:\mathrm{u}_{\mathrm{n}} +\mathrm{u}_{\mathrm{n}+\mathrm{1}} =\frac{\mathrm{2}}{\:\sqrt{\mathrm{n}}} \\ $$$$\mathrm{give}\:\mathrm{a}\:\mathrm{equivalent}\:\mathrm{of}\:\mathrm{u}_{\mathrm{n}} \:\:\left(\mathrm{n}\rightarrow\infty\right) \\ $$

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