lim(x→0)(x^2+cosx-2)/(x^3)*ln(1+x)怎么算写错了，lim(x→0)(x^2+2cosx-2)/(x^3)*ln(1+x).

求lim(1-cosx)/x^2求lim(1-COSX)/X^2X→0 lim(x→0)(cosx-cos^2x)/x^2 lim(x→0)(cosx)^(1/ln(1+x^2)) lim(x→0)(cosx)^[4/(x^2)] lim x→0[ln(cosx)]/x^2 lim(x→0)(cosx)^4/x^2 怎么解 limx→0(cosx)^(1/x^2)求解lim(x→0)((cosx)^(1/x^2)) lim(x→0)[(secx)^2-1] /(1-cosx) lim x→0(1+2cosx)^secx 已知lim(x→0) f(x)/(1-cosx) =2 求lim(x→0) [1+f(x)]^½ 求lim x→0 (tan2x-sinx)/x以及lim x→0 (cosx-cos3x)/x^2 (1) lim(x->正无穷) x-lnx (2) lim(x->0+) cosx^1/x^2 lim [2x(sin1/x)-(cos1/x)]/cosx 为什么极限不存在?x→0 求极限 lim e^x+e^-x-2cosx/x(e2x-1) x→0 求下列极限 lim（x→0）(1-cosx*√cosx*cosx的立方根)/x^2 lim(x→л/2)cosx/(x-л/2) lim/x→0 /lim 2-2cosx/ sinx^2利用罗必塔法则求极限 lim（x趋向于0）（1-cosx)/x^2