求lim x^2-1/x^2+x-2 x趋向1的极限

lim(1-x)^(2/x) x->0 求极限lim(1-2/x+3/x^2)^x lim(x趋近无穷)(1+2/x)^x怎么求 求极限lim(x-->0)x^2 sin(1/x), 求lim(√x^2+1)-x x→-∞ 求 lim(x→1)sin(x+1)/x+1 求 lim(x→2)x²-4/x-2 求极限lim(x->0)(x+e^x)^2/x 求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限 求lim(1-cosx)/x^2求lim(1-COSX)/X^2X→0 lim (x→1) (x/2+x)^{1-x^(1/2)/1-x} 求极限~ 求极限,lim(x趋向于1)(x^2-2x+1)/(x^3-x) 求lim√(3-x)-√(1+x)/(x^2+x-2) (x->1) 求极限x->0lim(tg^2(2x)/x^3)(1-x/(e^x-1)) 求lim√(3-x)-√(1+x)/(x^2+x-2) (x->1) 求lim(x->∞):[√(4x^2+x-1)+x+1]/[√(x^2+sinx)] lim (x^2 +x)/x^4-x+1 x区域无限大 求极限 当x→0时,lim[ln(1+2x)+xf(x)]/x^2=2,求lim[2+f(x)]/x为什么这样解是错的?lim[ln(1+2x)]/x^2+limf(x)/x=lim2x/x^2+limf(x)/x=lim[2+f(x)]/x=2不是有lim[f(x)+g(x)]=limf(x)+limg(x)吗? 当x→0时,lim[ln(1+2x)+xf(x)]/x^2=2,求lim[2+f(x)]/x 为什么这样解是错的?lim[ln(1+2x)]/x^2+limf(x)/x=lim2x/x^2+limf(x)/x=lim[2+f(x)]/x=2不是有lim[f(x)+g(x)]=limf(x)+limg(x)吗?