lim(x→1)(X^2-2X+1)/(X^2-1)的极限

lim x→1 x-1/x^2-x Lim [x^2/(x^2-1)]^x (x→∞) lim(1+x/x)2x (x→∞) lim(x→0)e^x-x-1/x^2 lim(1-x)^(2/x) x->0 lim(x)lim(x→∞) [(x-1)/(x+1)]^2x 为什么 lim(x->∞) {[(-2)/(x+1)]*2x} = -4 x/2-1lim(1-2/x)x→∞ lim(x→0)(1-2x)^1/x 极限? lim(x→∞)(1-2/x) (x+1)次方 lim 2（1+x）^1/x x→0 lim(x→1) (1-x)tan(π/2)x lim(x→∞)[1+(1/x)]^x/2 lim(x→∞)(1-2/x)^2x 极限lim(x→0)(1-2/x)^x lim x→∞(2x+1)/(3x-4) lim(x→0) (e^(-1/x^2))/x^100 lim(x→0)(2-e^x)^(1/x) lim(x→0)2x^3-x+1