What is the integral of 1/(100+t) ?

The integral of 1/(100+t) is ln|100+t|+C

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integral of 1/(100+t)

\int \frac{1}{100 + t} d t

ln ∣ 100 + t ∣ + C

Solution steps

\int \frac{1}{100 + 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 = 100 + t

= ln ∣ 100 + t ∣

Add a constant to the solution

= ln ∣ 100 + t ∣ + C

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