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Finner at $L = \\frac 1 3$ - og konkluderer at rekka konvergerer.

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Finner at $L = \\frac 1 3$ - og konkluderer at rekka divergerer.

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Finner at $L = 0$ - og konkluderer at rekka konvergerer.

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Finner at $L = 0$ - og konkluderer at rekka divergerer.

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Finner at $L =$'over-alle-genser' - og konkluderer at rekka konvergerer.

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Finner at $L =$'over-alle-genser' - og konkluderer at rekka divergerer.

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Forholdstesten brukes til å sjekke om rekka $\\displaystyle{\\sum_{n=1}^{\\infty}a_n = \\sum_{n=1}^{\\infty}\\frac{n! \\cdot n^2}{(3 n)!}}$ konvergerer.

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Når du har gjennomført drøftingen $\\displaystyle{\\lim_{n \\rightarrow \\infty}|\\frac{a_{n+1}}{a_n}|}$ finner du grenseverdien $L$ - og konkluderer at

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