lim x→1 sin^2(x-1)/(x^2-1)的极限

求 lim(x→∞)[sin(2/x)+cos(1/x)]^x的极限. 求极限lim(x-->0)x^2 sin(1/x), 求极限 （（sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1 lim x->0(sqrt(sin(1/x^2)) 求极限 求lim x→0时(2+e^ 1/x / 1+ e^ 4/x + sin x / |x| )的极限... 求极限 lim sin(x^2 * sin (1/x))/x x->0 求lim [sin(x^2-1)]/(x-1) x趋向于1的极限. lim(1-x^2)/sin兀x 当x趋近于1时的极限 lim(x趋于负无穷)(x^2)sin(1/x)的极限? 求lim x趋向无穷 sin(x+1)/x^2的极限 lim(x→1) sin^2(x-1)／x-1 求极限 求极限lim(x→1) sin(1-x)/(1-x^2)