例1求函数f(x)=C(C为常数的导数 #E '(x)=lim/(x+)-/(x)=lim 0 →>0 h→>0 即() Economic-mathematics 31-3 Wednesday, February 24 2021Economic-mathematics 31 - 3 Wednesday, February 24, 2021 例1 求函数 f (x) = C(C为常数)的导数. 解 h f x h f x f x h ( ) ( ) ( ) lim 0 + −  = → lim 0 0 = − = → h C C h 即 (C) = 0