求lim(x→2) (x ^2-x-2)/(x^2-5x+6)的极限
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求lim(x→2) (x ^2-x-2)/(x^2-5x+6)的极限
求lim(x→2) (x ^2-x-2)/(x^2-5x+6)的极限
求lim(x→2) (x ^2-x-2)/(x^2-5x+6)的极限
=lim(x-->2)(x+1)/(x-3)=-3
直接罗比达法则啊
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