Finite Math Examples

$z = 5 \cos (45 + i \sin (45))$

Step 1

The exact value of $\sin (45)$ is $\frac{\sqrt{2}}{2}$ .

$z = 5 \cos (45 + i \frac{\sqrt{2}}{2})$

Step 2

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

$z = 5 \cos (45 + \frac{i \sqrt{2}}{2})$