求lim(x→0)arctanx/x的极限,

求lim(x→0)arctanx/x的极限, 求极限lim(x→0)sinxsin(1/x);lim(x→∞)(arctanx/x) lim(x→0 )(arctanx/x)^(1/x^2)求极限求lim(x→0 )(arctanx/x)^(1/x^2) lim(x→+∞)(2/π*arctanx)^x求极限 求极限lim(2/π*arctanx)^x x→∞ 求极限解题lim(x→∞)=arctanx/x 求lim x趋向于0(arctanx)/(x^+1) 求lim x趋向于0(arctanx)/(x^2+1) lim(x+arctanx)/(x-arctanx) (x→∞) 求lim(x趋近0)（x-arctanx)/X^3的极限, 求x->0lim(arctanx-x)/[xln(1+2x^2)]的极限 求1、lim(x→∞)10^1/x的极限 2、lim(x→1)arctanx的极限, lim(x→∞)arctanx/x的极限 证明:arctanx和x是等价无穷小量证明:lim(x→0)arctanx/x=1,即证明arctanx和x是等价无穷小量,用洛必达法则作可以吧?这题好像是0/0求极限的类型 求lim(x-->负无穷大）arctanx的值 lim x→-∞ arctanx/2求极限 用洛必达法则求下列函数的极限.lim((兀/2-arctanx)/(1/x)) x→∞ 求x趋近于0时的极限：lim(1/(arctanx)^2-1/x^2)