What is the integral of (sqrt(1+3ln(x)))/x ?

The integral of (sqrt(1+3ln(x)))/x is 2/9 (1+3ln(x))^{3/2}+C

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integral of (sqrt(1+3ln(x)))/x

\int \frac{1 + 3 ln ( x )}{x} d x

\frac{2}{9} (1 + 3 ln (x))^{\frac{3}{2}} + C

Solution steps

\int \frac{1 + 3 ln ( x )}{x} d x

Apply u-substitution

: \int \frac{u}{3} d u

= \int \frac{u}{3} d u

Take the constant out:

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

= \frac{1}{3} \cdot \int u d u

Apply the Power Rule

: \frac{2}{3} u^{\frac{3}{2}}

= \frac{1}{3} \cdot \frac{2}{3} u^{\frac{3}{2}}

Substitute back

u = 1 + 3 ln (x)

= \frac{1}{3} \cdot \frac{2}{3} (1 + 3 ln (x))^{\frac{3}{2}}

Simplify

\frac{1}{3} \cdot \frac{2}{3} (1 + 3 ln (x))^{\frac{3}{2}} : \frac{2}{9} (1 + 3 ln (x))^{\frac{3}{2}}

= \frac{2}{9} (1 + 3 ln (x))^{\frac{3}{2}}

Add a constant to the solution

= \frac{2}{9} (1 + 3 ln (x))^{\frac{3}{2}} + C

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What is the integral of (sqrt(1+3ln(x)))/x ?
The integral of (sqrt(1+3ln(x)))/x is 2/9 (1+3ln(x))^{3/2}+C