Assignment 4: Logarithmic Derivatives

对数函数求导

练习自然对数函数的导数及对数微分法

1. Find d/dx[ln(3x)]

2. Find d/dx[ln(x²+1)]

3. Use logarithmic differentiation to find dy/dx if y = xˣ

4. Find d/dx[log₃(x²)]

5. Find d/dx[ln|sec(x) + tan(x)|]