①求极限lim (x→0) (sin kx)/x=?

①求极限lim (x→0) (sin kx)/x=? 求极限 （（sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1 求极限,lim x趋于0 x * sin 1/x 求极限lim(x-->0)x^2 sin(1/x), 求极限lim(x-->0) (tanX-sinX)/[(sin^3)X] 求极限 lim (x->0) sin(sinx)/x 求极限lim(x趋于0时)sin(sinx)/x lim x->0(sqrt(sin(1/x^2)) 求极限 求极限：lim x→0 ln[1+sin^2(x)]/[e^(x^2)－1] 求极限lim(sin(w符号)x)/x(x→0) 求极限lim(x→0) sin(1-x)/(1-x^2) 求极限 lim(x→0){x[sin(1/x^2)-1/sin2x]}