소낙

__fromthetopofthemou 设f(x)=(2x-1)^3,且f(x) f(x)=x+1x大于等于0,x^2x小 设f(x)=x^2-2x+3(x>=2) $4$元二次型$f(x_1,x_2,x_ f(x)=1/x(x+1),则f(1)= 英语语法：（）fromthetopoft 极限为0,则为无穷小.这句话对么? Seenfromthetower,the