Exponential and Logarithmic Forms

Rarely Tested

$$ \int \ln x \, dx = x \ln x - x + C $$
$$ \int e^{ax} \sin bx \, dx = \frac{e^{ax}}{a^2+b^2} (a \sin bx - b \cos bx) + C $$
$$ \int e^{ax} \cos bx \, dx = \frac{e^{ax}}{a^2+b^2} (a \cos bx + b \sin bx) + C $$
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