lim(x→1) 求1/(x-1)的极限 说一下思路.

求极限lim x→∞ (x/(1+x))^x lim(1-x)^3/x 求极限~ 求1、lim(x→∞)10^1/x的极限 2、lim(x→1)arctanx的极限, 求极限lim Ln(1+x) /x > .< x→0 求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限 求lim(x->0+) x/[根号(1-cosx)]的极限, 求极限lim(x→0)sinxsin(1/x);lim(x→∞)(arctanx/x) 求极限lim(x→0)x²/1-cosx 求极限：lim(x→+∞)[ln(x+1)-lnx] 求极限lim(x→0) cos(1/x) 求lim(1-cos2x)/x^2极限,x→0 求极限lim(x→0)(cosx-(1/x)) 求极限lim x→0 (1/xsinx+xsin1/x) 求极限lim(x→0) (1-sinx)^(2/x) lim x→∞ xsin(1/x)求极限 求极限 lim(x→0)(1-sinx)^(2/x) 求极限lim(x→∞) (x的平方-1/x的平方)的x次方 求该函数的极限 (x→1)lim [ x/(x-1) -1/ln x]