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Finn følgende grenseverdier

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$\\lim\\limits_{x\\rightarrow\\var{c}}\\dfrac{\\simplify{x^2-{c^2}}}{\\simplify{x-{c}}}$

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$\\lim\\limits_{x\\rightarrow\\var{d}}\\dfrac{\\simplify{{a}x^2-{a*(d+c)}x+{a*d*c}}}{\\simplify{x^2-{d^2}}}$

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