求此极限的值lim x趋向于0 (x+1)/2x=

lim(2x+1/2x-1)^3x x趋向于无穷大,求此极限的值. 求lim X趋向于0(1-2x)的X次方分之一的极限. 求极限!lim（x趋向于1）x的平方+2x+3/x+2 求极限：lim(x趋向于0+）x^(x^x-1)=? lim极限趋向于0+求x/√(1-cosx) 求lim(x趋向于0)(1-x)^(1/x)的极限 求极限:X趋向于0,lim(a的x方-1)/x详细解答! 求lim [sin(x^2-1)]/(x-1) x趋向于1的极限. 求极限lim(x趋向于0)ln(1+x^2)/sin(1+x^2) lim趋向于0(2x-1/1+2x)^x求极限 lim x-sinx/x(e^2-1)求极限x趋向于0 求极限lim【1-cosmx)/x^2】,x趋向0