What is the integral of 1/(t*ln(t)) ?

The integral of 1/(t*ln(t)) is ln|ln(t)|+C

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integral of 1/(t*ln(t))

\int \frac{1}{t \cdot ln ( t )} d t

ln ∣ ln (t) ∣ + C

Solution steps

\int \frac{1}{t ln ( t )} d t

Apply u-substitution

: \int \frac{1}{u} d u

= \int \frac{1}{u} d u

Use the common integral:

\int \frac{1}{u} d u = ln (∣ u ∣)

= ln ∣ u ∣

Substitute back

u = ln (t)

= ln ∣ ln (t) ∣

Add a constant to the solution

= ln ∣ ln (t) ∣ + C

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What is the integral of 1/(t*ln(t)) ?
The integral of 1/(t*ln(t)) is ln|ln(t)|+C