发布网友 发布时间:2022-04-23 14:37
共2个回答
热心网友 时间:2023-10-18 21:17
y=(x²+1)(3x-1)(1-x³)取自然对数,则lny=ln(x²+1)+ln(3x-1)+ln(1-x³)对x求导,则(1/y)y'=2x/(x²+1)+3/(3x-1)-3x²/(1-x³)则y'=y[2x/(x²+1)+3/(3x-1)-3x²/(1-x³)]=[(x²+1)(3x-1)(1-x³)][2x/(x²+1)+3/(3x-1)-3x²/(1-x³)]
热心网友 时间:2023-10-18 21:18
ln³x'
=(3ln²x)×(1/x)
=3ln²x/x
热心网友 时间:2023-10-18 21:17
y=(x²+1)(3x-1)(1-x³)取自然对数,则lny=ln(x²+1)+ln(3x-1)+ln(1-x³)对x求导,则(1/y)y'=2x/(x²+1)+3/(3x-1)-3x²/(1-x³)则y'=y[2x/(x²+1)+3/(3x-1)-3x²/(1-x³)]=[(x²+1)(3x-1)(1-x³)][2x/(x²+1)+3/(3x-1)-3x²/(1-x³)]
热心网友 时间:2023-10-18 21:18
ln³x'
=(3ln²x)×(1/x)
=3ln²x/x