lim((x/x-1)-(1/inx)) (x->1)求极限

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lim((x/x-1)-(1/inx)) (x->1)求极限
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lim((x/x-1)-(1/inx)) (x->1)求极限
lim((x/x-1)-(1/inx)) (x->1)
求极限

lim((x/x-1)-(1/inx)) (x->1)求极限
lim((x/x-1)-(1/lnx)) (x->1)
=lim(1+1/(x-1)-(1/lnx)) (x->1)
=lim(1+1/(t)-(1/ln(t+1))) (t->0)
lim[ln(t+1)/t]=[ln(t+1)'/t']=1(t->0)
1/(t)-(1/ln(t+1))=0
lim((x/x-1)-(1/lnx)) (x->1)
=(1+0)=1

inx是什么东西啊?