英语翻译
问题描述：
英语翻译
For all positive values of x,the function f is defined by f(x)=...,Of the folowing,which is the best approximation of f(x) for values of x greater than 1000?
答
x为正值,函数f定义为f(x)=...,下列哪个以X为自变量的函数f(x)大于1000