求lim(x~无限大)(sin(x^(2)+5)/x^2)
x无限大 lim cosx
求极限lim(1-1/2x)^x(x趋向无限大)
求极限lim(x-->0)x^2 sin(1/x),
lim sin 2x / sin 5x lim arctan x / x
lim x->0(sqrt(sin(1/x^2)) 求极限
求极限 lim sin(x^2 * sin (1/x))/x x->0
求极限 ((sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1
基础高数题1、设函数f(x)=lim t趋向于无限大{t^2*sin(x/t)*[φ(x+π/t)-φ(x)]}其中φ具
求lim (sin^2x+x)/(cos^2x-x) x趋向于无穷
lim x趋于0 [sin(a+x)sin(a+2x)-sin^2a]/x 求极限
求函数的极限lim((x→x/2)cosx)/(cos(x/2)-sin(x/2))
求极限:lim x→2 sin(x-2)/(2+x-x²)