Precalculus Examples

$3 \sin (\frac{π}{4}) x + \sin (x)$

Step 1

The exact value of $\sin (\frac{π}{4})$ is $\frac{\sqrt{2}}{2}$ .

$3 \frac{\sqrt{2}}{2} x + \sin (x)$

Step 2

Combine $3$ and $\frac{\sqrt{2}}{2}$ .

$\frac{3 \sqrt{2}}{2} x + \sin (x)$

Step 3

Combine $\frac{3 \sqrt{2}}{2}$ and $x$ .

$\frac{3 \sqrt{2} x}{2} + \sin (x)$