Question

求导数、详细步骤

Answer 1

求导等于e的4减x方再乘以负1，复合函数的求导，先对内函数求导再乘以外函数求导

Answer 2

复合函数求导

Answer 3

y=(4-x)'e^(4-x)=-e^(4-x)

Answer 4

y'=(4-x)'e^(4-x)
=-e^(4-x)