lim （sin^2 2x）/x^2 x→0 极限

lim(x(sin)^2) lim（x→2）x-2 /sin( lim x→∞ (x+sin 2x)/2 求lim(x~无限大)(sin(x^(2)+5)/x^2) lim(x趋向0) x^2 / (sin^2) * x/3 lim(x趋向0) x^2 / (sin^2) * x/3 lim(sin(x^2*cos(1/x)))/x怎么做? lim(x趋向0)ln(1+sin x)/x^2 求极限lim(x-->0)x^2 sin(1/x), lim[(sin x)^tan x],x趋向于Pai/2 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 lim(x趋于0)(x^2-sin^2xcos^2x)/((x^2)sin^2x) lim（x—+∞）(x^2*sin(1／X))／√(2x^2-1) lim（x—+∞）﹛(x^2*sin(1／X))／√(2x^2-1) lim(x趋近于0)(（1/sin^2 x）-(cos^2 x)/x^2)= lim（sin（x-1））/(x^2+x-2),x趋于1,求极限 求lim x->∞ （xtan2/x+(1/x^2)*（sin）x^2） 等于多少 lim(sin^2x)/2-e^x-e^-x求极限(x－＞∞）