What is the integral of 4/((xln(x))) ?

The integral of 4/((xln(x))) is 4ln|ln(x)|+C

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integral of 4/((xln(x)))

\int \frac{4}{( x ln ( x ) )} d x

4 ln ∣ ln (x) ∣ + C

Solution steps

\int \frac{4}{x ln ( x )} d x

Take the constant out:

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

= 4 \cdot \int \frac{1}{x ln ( x )} d x

Apply u-substitution

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

= 4 \cdot \int \frac{1}{u} d u

Use the common integral:

\int \frac{1}{u} d u = ln (∣ u ∣)

= 4 ln ∣ u ∣

Substitute back

u = ln (x)

= 4 ln ∣ ln (x) ∣

Add a constant to the solution

= 4 ln ∣ ln (x) ∣ + C

y = x^{2} - 2 x - 2, (3, 1)

\int \frac{1}{y ( 3 - y )} d y

\int ln (6 x^{2}) d x

y d x + x d y = 0

\int ln (x + 4) d x

What is the integral of 4/((xln(x))) ?
The integral of 4/((xln(x))) is 4ln|ln(x)|+C