What is the integral of e^{3y}(1-e^{3y})^{3/2} ?

The integral of e^{3y}(1-e^{3y})^{3/2} is -2/15 (1-e^{3y})^{5/2}+C

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integral of e^{3y}(1-e^{3y})^{3/2}

\int e^{3 y} (1 - e^{3 y})^{\frac{3}{2}} d y

- \frac{2}{15} (1 - e^{3 y})^{\frac{5}{2}} + C

Solution steps

\int e^{3 y} (1 - e^{3 y})^{\frac{3}{2}} d y

Apply u-substitution

= \int - \frac{u ^{\frac{3}{2}}}{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^{\frac{3}{2}} d u

Apply the Power Rule

= - \frac{1}{3} \cdot \frac{2}{5} u^{\frac{5}{2}}

Substitute back

u = 1 - e^{3 y}

= - \frac{1}{3} \cdot \frac{2}{5} (1 - e^{3 y})^{\frac{5}{2}}

Simplify

- \frac{1}{3} \cdot \frac{2}{5} (1 - e^{3 y})^{\frac{5}{2}} : - \frac{2}{15} (1 - e^{3 y})^{\frac{5}{2}}

= - \frac{2}{15} (1 - e^{3 y})^{\frac{5}{2}}

Add a constant to the solution

= - \frac{2}{15} (1 - e^{3 y})^{\frac{5}{2}} + C

What is the integral of e^{3y}(1-e^{3y})^{3/2} ?
The integral of e^{3y}(1-e^{3y})^{3/2} is -2/15 (1-e^{3y})^{5/2}+C