f(x)=(x-3)/(x+3)求导_数学解答

f(x)=(x-3)/(x+3)求导

人气：497 ℃　时间：2020-03-23 04:59:19

解答

f =(x-3)/(x+3)
f '=[(x-3)' (x+3)-(x-3)(x+3)']/(x+3)^2
=[(x+3)-(x-3)]/(x+3)^2
=6/(x+3)^2