求极限,lim(x->0) (1-2sinx)^(3/x)lim(n->+∞) (n!-4^n) / (6+ln(n)+n^2)

求极限lim(x-->0)x^2 sin(1/x), 求极限lim【1-cosmx)/x^2】,x趋向0 lim x->0(sqrt(sin(1/x^2)) 求极限 lim 1/2x x-->0 求极限 求lim(1-cos2x)/x^2极限,x→0 求极限lim(x→0) (1-sinx)^(2/x) 求极限 lim(x→0)(1-sinx)^(2/x) 求极限ln(1+2x)/sin(1+2x),lim x->0求它极限. lim(1+2x)^1/x求极限（lim下是x~0) 求极限lim (e^x^2)/cosx-1 区域0 求极限lim(x->0)(x+e^x)^2/x 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 x趋近于0 lim[(4^x-5^x)/2]^1/x求极限 x趋近于0 lim[(4^x-5^x)/2]^1/x 求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限 求lim (sec^2 x求极限lim (sec^2 x - 1 )/(1-cos x) X-0请写出过程, 求极限 lim/x-0 (根号x+1) -1/x 求极限,lim x趋于0 x * sin 1/x 求极限lim Ln(1+x) /x > .< x→0