Integral of a Linear Function Times Its Logarithm

Rarely Tested

Integral of a Linear Function Times Its Logarithm

For a suitable linear expression $$ax+b$$:

$$\int(ax+b)\ln(ax+b)\,dx=\frac{(ax+b)^2}{2a}\ln|ax+b|-\frac{(ax+b)^2}{4a}+C$$

Usage

- Used for products involving a linear function and its logarithm.


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