求极限lim(x→0)(cosx-(1/x))

求极限lim(x→0)x²/1-cosx 数学求极限lim x→0 ( x3/1-cosx) 求下列极限lim(x→0)(1-cosx)/xsinx 求极限 x 趋于0 lim(cosx)^1/(x^2) 求极限 lim x-0 1-cosx / x-sinx 求lim(x->0+) x/[根号(1-cosx)]的极限, 求极限 lim(cosx+sinx)^1/x 求极限lim(x→0)（1-根号cosx）/[x（1-cos根号x）] lim极限趋向于0+求x/√(1-cosx) x→∞ lim(cosx+x)/(sinx-x) 求极限? 求极限~lim(x→0)[(1+xsinx)^1/2-cosx]/sin^2(x/2) 求极限lim(1-√cosx)/(1-cos√x) (x→0+)