求极限lim(x→0) sin(1-x)/(1-x^2)

求极限,lim x趋于0 x * 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 （（sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1 求极限 lim sin(x^2 * sin (1/x))/x x->0求极限 lim sin(x^2 * sin (1/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]} 求极限：lim x→0 ln[1+sin^2(x)]/[e^(x^2)－1] lim x→0 (x∧2 cscx sin(1/x)) 求极限 求极限ln(1+2x)/sin(1+2x),lim x->0求它极限. 求极限~lim(x→0)[(1+xsinx)^1/2-cosx]/sin^2(x/2) 求极限x→0 lim(√2-√1+cosx)/sin^2x 求极限lim(x→∞）(sin√x+1-sin√x) 求极限lim(x→+∞)(sin√(x+1)-sin√x) 求极限lim(x趋于0时)sin(sinx)/x 求极限 lim (x->0) sin(sinx)/x 求极限lim(x-->0) (tanX-sinX)/[(sin^3)X] 求极限：lim(x*sin(1/x))^2