急求!lim(x-arctan(cosx))/(x+arctan(cosx)),x趋向于无穷大
lim【(arctan x)*(cos(1/x))】,当x趋向于无穷大时,求极限
lim(X趋向于无穷大)cosX的极限存在吗?
x趋向于无穷大时,lim(2x-sinx)/(x+cosx)的极限
求极限 lim ln(cosx) x趋向于45°
1-√cosx/xsinx 求Lim X趋向于0
lim极限趋向于0+求x/√(1-cosx)
大数lim(cosx)^(1/(1-cosx)).x趋向于0
lim(cosx)^(1/(1-cosx)).x趋向于0
x趋近于正无穷 arctan(x-cosxlnx) =arctan【x(1-cosx*lnx/x )】 =arctanx
急.求极限 lim x趋向于π/2,(sinx)的(1/cosx)^2
lim (x 趋向于无穷)e^-x^2*cosx
lim(x趋向于0)(1-cosx)/x^2