lim(x->0)(1/(tanx)^2-1/(x)^2

lim(x->0)(1/(tanx)^2-1/(x)^2 lim(x->0+)(1/x)^tanx lim(1+2tanx)^cotx (x趋向于0) lim(x→0) (1+tanx)^cotx x趋于0 lim sinx-tanx/x^3=lim sinx/x×(cosx-1)/(x^2×cosx)是怎么通分的?x趋于0 lim sinx-tanx/x^3=lim sinx/x×(cosx-1)/(x^2×cosx)thank you lim趋于0((tanx-x)/(x-sinx))^(cotx-1/x) x趋于0时,求lim(x-tanx)/x^2, 洛必达法则 lim(x->0+).(1/x)^(tanx) x→+0,lim（1/x)^(tanx)=? lim(x趋于0)（tanx-sinx）/[(1-cosx)x] lim(2x-tanx)/sinx的极限?x→0 lim(x趋于0）tanx-sinx/x^2=? lim(sinx-tanx)/x^2,x趋近0 lim(x趋于0)(tanx-sinx)/3x^2 lim[ln(1+x)+ln(1-x)]/(tanx)^2 lim(x->1) x^(1/（1-x）) lim(x->0) x^(tanx)的值 求极限,lim(x->0) (e^x-e^sinx ) / [ (tanx )^2 * ln(1+2x)] 求极限 lim(2-tanx/x)^(1/x^2),x-->0