1. lim(x趋向0时)[x^2(1-cosX)]/[(1+e^X)(sinX)^3]

1.lim(x趋向0时)[x^2(1-cosX)]/[(1+e^X)(sinX)^3] 1.x趋向0 lim (cosx-1)/x 2.x趋向0 lim sinx/x lim(1-cosx+sinx) 极限(x趋向0) lim X趋向于0 (cosX-1)/sinX 若lim（sinx/(1-e^x))(b-cosx)=3 (x趋向于0),求b是多少? 1.lim(sinx)^2/√(1+xsinx)-√cosx x趋向于0 lim(x趋向0)(1-e^cosx-1) lim x-sinx/x(e^2-1)求极限x趋向于0 lim(1-x^2-e^-x²)/(sinx^4) x趋向于0 lim(x+e^2x)^1/sinx(x趋向于0）=? lim(x趋向于0）(1+sinx-cosx)/(1+sinβx-cosβx) 极限lim(x-sinx)/[x(1-cosx)] 其中x趋向于0