Y=cos(3x-π/4)的导数

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Y=cos(3x-π/4)的导数Y=cos(3x-π/4)的导数Y=cos(3x-π/4)的导数是复合函数求导Y′=[cos(3x-π/4)]′(3x-π/4)′=-sin(3x-π/4)×3=-3s

Y=cos(3x-π/4)的导数
Y=cos(3x-π/4)的导数

Y=cos(3x-π/4)的导数
是复合函数求导
Y′=[cos(3x-π/4)]′(3x-π/4)′
=-sin(3x-π/4)×3
=-3sin(3x-π/4)

Y=cos(3x-π/4)
Y'=-3sin(3x-π/4)

Y=cos(3x-π/4)
Y'=-3sin(3x-π/4)