求极限lim 2X^2-5X+2/X^2-X-2 X=2
求极限lim(x->0)(x+e^x)^2/x
求极限lim(1-2/x+3/x^2)^x
求极限 lim/x-0 (e^x+sinx+x^2)
求极限:lim{(2x+sinx)/x}(x->无穷大)
求极限lim(x-->0)x^2 sin(1/x),
求极限:lim(x->4)(x^2-6x+8)/(x^2-5x+4)
求极限lim (3x^3+5x^2+x) / (7x^3+5x-4)
求极限 lim x-0 sinx/2x =?
求极限 ((sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1
极限:lim(x->2)1/(x-2)
求极限lim{xln(1+2/x)}
求极限lim(x→∞)[(2x+5)/(2x+3)]^(x+1)