x趋向0 lim(cot x- 1/x)=?

lim x趋向0 1/x∧2— cot∧2x 求极限 x趋向于0 lim(1+tanx)^1-2cot 求极限 lim(x趋向0)((sinx/x)+1)=2? lim(x趋向于0)sinx/x=1,那么lim(x趋向于0)x/sinx=?怎么算? 1.x趋向0 lim (cosx-1)/x 2.x趋向0 lim sinx/x x趋向1负时,求lim【ln(1-x)+tan派/2*x】/cot派*x,谢谢 Lim(x趋向0)xcotx=? lim(1-cosx)x趋向0, X趋向0 lim(xsinx)/(1-cosx) x趋向0 lim xcotx x趋向于0 lim f(x)/x=0 计算极限 lim(1-x)^1/x x趋向0