lim(1-cosx)/(e^x-1)ln(1-x),x->0

lim(x->0)[cosx-e^(-x^2/2)]/[x^2[x+ln(1-x)]] lim(x趋于0)（1-cosx）/[ln(1+x)(e^x-1)] lim(1-cosx)/(e^x-1)ln(1-x),x->0 lim(x→0)(cosx)^(1/ln(1+x^2)) lim(x→0)(ln(1+x^2)/(sec-cosx)) lim[ln(1+x^2)]/(secx-cosx) x->0 lim(x->0)ln(1+2x)/e^x-1 x趋向0 lim [ ln (1-x) / (e ^ x-1 ) ] lim(x→0)ln(1+2x)(1-cosx)/（(e^x-1)sinx^2) 一道求极限的题 lim e^2x-1/ln(1-X) 0 lim x趋于0 (sinx+x^2sin1/x)/[(1+cosx)ln(1+x)] lim(x→0)(x^2+cosx-2)/(x^3)*ln(1+x)怎么算