求极限,lim x→2 sin(x-2)÷x平方-4

求极限lim(x-->0)x^2 sin(1/x), 求极限：lim(x*sin(1/x))^2 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→2 sin(x-2)/(2+x-x²) 求函数的极限lim((x→x/2)cosx)/(cos(x/2)-sin(x/2)) 求 lim(x→∞)[sin(2/x)+cos(1/x)]^x的极限. 求极限lim.[( tanx-sinx) /(sin^2 2x)] 求极限：lim x→0 ln[1+sin^2(x)]/[e^(x^2)－1] 求极限,lim x→2 sin(x-2)÷x平方-4 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]} lim x→0 (x∧2 cscx sin(1/x)) 求极限 求极限lim（x→1）（1-x^2）/(sinπx) lim(x→1) sin^2(x-1)／x-1 求极限 求极限lim(x→1) sin(1-x)/(1-x^2) 求极限ln(1+2x)/sin(1+2x),lim x->0求它极限.