求极限 limx→5 x^2-7x+10/x^2-5^2limx→5 x^2-7x+10/x^2-5^2
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求极限limx→5x^2-7x+10/x^2-5^2limx→5x^2-7x+10/x^2-5^2求极限limx→5x^2-7x+10/x^2-5^2limx→5x^2-7x+10/x^2-5^2求极
求极限 limx→5 x^2-7x+10/x^2-5^2limx→5 x^2-7x+10/x^2-5^2
求极限 limx→5 x^2-7x+10/x^2-5^2
limx→5 x^2-7x+10/x^2-5^2
求极限 limx→5 x^2-7x+10/x^2-5^2limx→5 x^2-7x+10/x^2-5^2
原式=lim(x-2)(x-5)/(x+5)(x-5)
=lim(x-2)/(x+5)
=3/10
求极限 limx→5 x^2-7x+10/x^2-5^2limx→5 x^2-7x+10/x^2-5^2
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