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konrad509

[tex]a_n=\dfrac{1}{n^2}[/tex]

[tex]\bf \stackrel{\frac{1}{1^2}}{1}~~,~~\stackrel{\frac{1}{2^2}}{\cfrac{1}{4}}~~,~~\stackrel{\frac{1}{3^2}}{\cfrac{1}{9}}~~,~~\stackrel{\frac{1}{4^2}}{\cfrac{1}{16}}~~,~~\stackrel{\frac{1}{5^2}}{\cfrac{1}{25}}~\hspace{7em}a_n=\cfrac{1}{n^2}[/tex]

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