求limx→∞((x^2-1)/(x^2+1))^(x^2)
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求limx→∞((x^2-1)/(x^2+1))^(x^2)求limx→∞((x^2-1)/(x^2+1))^(x^2)求limx→∞((x^2-1)/(x^2+1))^(x^2)=lim﹙1-2/﹙
求limx→∞((x^2-1)/(x^2+1))^(x^2)
求limx→∞((x^2-1)/(x^2+1))^(x^2)
求limx→∞((x^2-1)/(x^2+1))^(x^2)
=lim﹙1-2/﹙t+1﹚﹚^2[﹙t+1﹚/2] -1 ﹙t趋于﹢∞﹚
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