limx趋近于1 x^2-1/inx
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limx趋近于1x^2-1/inxlimx趋近于1x^2-1/inxlimx趋近于1x^2-1/inx答:lim(x→1)(x^2-1)/lnx=lim(x→1)(x-1)(x+1)/lnx=lim(
limx趋近于1 x^2-1/inx
limx趋近于1 x^2-1/inx
limx趋近于1 x^2-1/inx
答:
lim(x→1) (x^2-1) / lnx
=lim(x→1) (x-1)(x+1) / lnx
=lim(x→1) (1+1)*(x-1) / lnx
=lim(x→1) 2(x-1) / lnx
=lim(x→1) 2 / (1/x)
=2
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