lim x趋向0 (1+cos^2(1/x))^x
x趋向0 lim cos(1/x),x趋向pai/2 tanx
利用lim sinx/x =1或等价无穷小量求极限 lim (cosαx-cosβx)/x^2 x趋向0
lim(x趋向0)ln(1+sin x)/x^2
导数计算问题lim x趋向无穷[(x-3)(2x^2+1)]/(2-7x^3)lim x趋向4 [e^x+cos(4-x
lim(x趋向于0)(1+sinx-cosx)/(1+sinβx-cosβx)
lim(x趋向于无穷大时)cos{ln[1+(2x-1)/x^2]}
lim(x趋向于无穷大时)x^2[1-cos(1/x)]
1.x趋向0 lim (cosx-1)/x 2.x趋向0 lim sinx/x
用无穷小量的性质求下列极限,1,x趋向于0,limx^2cos(1/x) 2,x趋向于无穷大,lim(arctanx/x
求lim x趋向于0(arctanx)/(x^2+1)
lim(1-2^x)^sinx x趋向于-0
lim(x趋向于0)(1-cosx)/x^2