What is the integral of 1/(p(1-p)) ?

The integral of 1/(p(1-p)) is ln|p|-ln|p-1|+C

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integral of 1/(p(1-p))

\int \frac{1}{p ( 1 - p )} d p

ln ∣ p ∣ - ln ∣ p - 1 ∣ + C

Solution steps

\int \frac{1}{p ( 1 - p )} d p

Take the partial fraction of

\frac{1}{p ( 1 - p )} : \frac{1}{p} - \frac{1}{p - 1}

= \int \frac{1}{p} - \frac{1}{p - 1} d p

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int \frac{1}{p} d p - \int \frac{1}{p - 1} d p

\int \frac{1}{p} d p = ln ∣ p ∣

\int \frac{1}{p - 1} d p = ln ∣ p - 1 ∣

= ln ∣ p ∣ - ln ∣ p - 1 ∣

Add a constant to the solution

= ln ∣ p ∣ - ln ∣ p - 1 ∣ + C

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What is the integral of 1/(p(1-p)) ?
The integral of 1/(p(1-p)) is ln|p|-ln|p-1|+C