What is the integral of 1/(2z^2+3) ?

The integral of 1/(2z^2+3) is 1/(sqrt(6))arctan(sqrt(2/3)z)+C

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integral of 1/(2z^2+3)

\int \frac{1}{2 z ^{2} + 3} d z

\frac{1}{6} arctan (\frac{2}{3} z) + C

Solution steps

\int \frac{1}{2 z ^{2} + 3} d z

Apply Integral Substitution

= \int \frac{1}{6 ( u ^{2} + 1 )} d u

Take the constant out:

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

= \frac{1}{6} \cdot \int \frac{1}{u ^{2} + 1} d u

Use the common integral:

\int \frac{1}{u ^{2} + 1} d u = arctan (u)

= \frac{1}{6} arctan (u)

Substitute back

u = \frac{2}{3} z

= \frac{1}{6} arctan (\frac{2}{3} z)

Combine same powers :

\frac{x}{y} = \frac{x}{y}

= \frac{1}{6} arctan (\frac{2}{3} z)

Add a constant to the solution

= \frac{1}{6} arctan (\frac{2}{3} z) + C

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What is the integral of 1/(2z^2+3) ?
The integral of 1/(2z^2+3) is 1/(sqrt(6))arctan(sqrt(2/3)z)+C