求极限lim(x-->0)x^2 sin(1/x),

求极限lim(x-->0)x^2 sin(1/x), lim x->0(sqrt(sin(1/x^2)) 求极限 求极限,lim x趋于0 x * sin 1/x 求极限 lim sin(x^2 * sin (1/x))/x x->0 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→0 ln[1+sin^2(x)]/[e^(x^2)－1] 求极限:lim(1/sin^2(x)-1/x^2),x->0 求极限lim(x趋向于0)ln(1+x^2)/sin(1+x^2) 求极限ln(1+2x)/sin(1+2x),lim x->0 lim 1-cos4x/2sin^2x+xtan^2x x趋近于0 求极限 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]}