What is the integral of (2x+1)/(xln(x)) ?

The integral of (2x+1)/(xln(x)) is 2\Ei(ln(x))+ln|ln(x)|+C

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integral of (2x+1)/(xln(x))

\int \frac{2 x + 1}{x ln ( x )} d x

2 Ei (ln (x)) + ln ∣ ln (x) ∣ + C

Solution steps

\int \frac{2 x + 1}{x ln ( x )} d x

Expand

\frac{2 x + 1}{x ln ( x )} : \frac{2}{ln ( x )} + \frac{1}{x ln ( x )}

= \int \frac{2}{ln ( x )} + \frac{1}{x ln ( x )} d x

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{2}{ln ( x )} d x + \int \frac{1}{x ln ( x )} d x

\int \frac{2}{ln ( x )} d x = 2 Ei (ln (x))

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

= 2 Ei (ln (x)) + ln ∣ ln (x) ∣

Add a constant to the solution

= 2 Ei (ln (x)) + ln ∣ ln (x) ∣ + C

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What is the integral of (2x+1)/(xln(x)) ?
The integral of (2x+1)/(xln(x)) is 2\Ei(ln(x))+ln|ln(x)|+C