What is the integral of 14coth(x) ?

The integral of 14coth(x) is 14ln|sinh(x)|+C

integral of 14coth(x)

\int 14 coth (x) d x

14 ln ∣ sinh (x) ∣ + C

Solution steps

\int 14 coth (x) d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 14 \cdot \int coth (x) d x

Rewrite using trig identities

= 14 \cdot \int \frac{cosh ( x )}{sinh ( x )} d x

Apply u-substitution

= 14 \cdot \int \frac{1}{u} d u

Use the common integral:

\int \frac{1}{u} d u = ln (∣ u ∣)

= 14 ln ∣ u ∣

Substitute back

u = sinh (x)

= 14 ln ∣ sinh (x) ∣

Add a constant to the solution

= 14 ln ∣ sinh (x) ∣ + C

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What is the integral of 14coth(x) ?
The integral of 14coth(x) is 14ln|sinh(x)|+C