lim(x趋向于2)(1/x-2-12/x^3-8)

lim(1-2x)^1/x x趋向于0 lim(x趋向于0)(x*cotx-1)/(x^2) lim(1+3x)^(2/x)x趋向于零 f(x)={x x=1}求lim x趋向于1- f(x) lim x趋向于1+ f(x) lim趋向于1 f(x)f(x)={2x-1 x0} 求lim x趋向于0- f(x) lim x趋向于0+ f(x) lim趋向于0 f(x) (1-x)tan(πx/2),lim 趋向于1, lim（x趋向于0）（1-cosx)/x^2 求lim x趋向于0(arctanx)/(x^2+1) lim(1+2tanx)^cotx (x趋向于0) lim(x趋向于2)(1/x-2-12/x^3-8) lim(1-2x)^(1/x)=?lim下面是X趋向于0 lim[(sin x)^tan x],x趋向于Pai/2 lim f(x)=A x趋向于a limf(x^2)=A x趋向于a^2/1 求极限,lim(x趋向于1)(x^2-2x+1)/(x^3-x) lim((1+x)^5-(1+5x))/(x^2+x^5) x趋向于0 lim (1+x)^5+(1+5x)/(x^2+x^5) x趋向于0 lim （x 趋向于无穷)e^-x^2*cosx lim(arctanx/2x) x趋向于零 lim(tanx+sinx)/x∧2 x趋向于零