求极限 lim(x→0)(lim(n_∞)cos(x/2)cos(x/2²)...cos
求极限 lim(x→0)(lim(n_∞)cos(x/2)cos(x/2²)...cos
求lim(x→0+) ( 2/π*cosπ/2(1-x))/x的极限
求极限:lim(x→0)ln(1+x²)/ (sec x- cos x)
lim x 趋向于0 时,求 cos(x^2)/x 极限
求极限lim(x→0)(1-根号cosx)/[x(1-cos根号x)]
求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限
求极限lim(x→0)(1/sin²x-1/x²cos²x)
x趋近于+0求极限lim(cos√x)^π/x
求极限lim(x趋向于0+)(cos根号x)^π /x
极限题,1.lim x-->0 cos(2x)-cos(3x)/x^22.lim x-->∞ cos(2x)-cos(3
lim(x→∞)[(sinx)^2+x/cos^2x-x]求极限
求 lim(x→∞)[sin(2/x)+cos(1/x)]^x的极限.