# Step-by-step Solution

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## Step-by-step explanation

Problem to solve:

$\int\left(cos\left(ax\right)\right)dx$

Learn how to solve special products problems step by step online.

$\begin{matrix}u=ax \\ du=adx\end{matrix}$

Learn how to solve special products problems step by step online. Solve the trigonometric integral int(cos(a*x))dx. Solve the integral \int\cos\left(ax\right)dx applying u-substitution. Let u and du be. Isolate dx in the previous equation. Substituting u and dx in the integral and simplify. Take the constant out of the integral.

$\frac{\sin\left(ax\right)}{a}+C_0$

### Problem Analysis

$\int\left(cos\left(ax\right)\right)dx$

Special products

~ 1.25 seconds