f(x)= (x^2)sin(1/x),x≠0
f(x)=x^2*sin(1/x),x≠0
f(x)为奇函数,x>0,f(x)=sin 2x+cos x,则x
设f(x)=sin兀x(x=0),g(x)=cos兀x(x=1/2)
求导f(x) = cos(3x) * cos(2x) + sin(3x) * sin(2x).
函数f(x)=cos(-x/2)+sin(π-x/2),x属于R,(1)求f(x)的周期,(2)求f(x)在[0,π]上
设f(x)=(1+cosx)^(x+1)*sin(x^2-3x),求f(0)的导数等于多少
求极限 ((sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1
已知函数f(x)=sin(2x+φ) (0
函数f(x)=sin(2x+φ)(0
设函数f(x)=sin(2x+φ)(0
设函数f(x)=sin(2x+a)(0
f(x)=sin(2x+θ) 其中0