lim(x^2+1/x^2-2x)^x=?

lim(x^2+1/x^2-2x)^x=? lim(x+1/x+2)^x=?x趋于无穷 lim(x趋于无穷)(x/1+x)^(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 lim[(2x-1)e^(1/x)-2x]=? lim x趋向无穷大 (1+2/x)^x=? lim x→∞(1-2/x)^x= lim(x->无穷大){(2^x-3^x)/2}^(1/x) Lim [x^2/(x^2-1)]^x (x→∞) Lim(x>1) x-1/x^2+x-2.计算 lim x→1 x-1/x^2-x lim(x/x-c)^x=2 x趋于无穷 lim x->正无穷大 x ( sqrt(x^2+1)-x ) lim(x->0)((2-x)/(3-x))^1/x lim(1+x/x)2x (x→∞) lim(x→0)e^x-x-1/x^2 洛必达法则(1)条件?(2)lim(x->0)P(x)/Q(x)=?已知:lim(x->0)P(x)=A(x),lim(x->0)Q(x)=B(x)可不可以:lim(x->0)P(x)/Q(x)=lim(x->0)A(x)/B(x)(3)lim(x->0)[(1+x)^(1/x)-e]/(cosx-1)=?