Basic Math Examples

$- \sin (\frac{π i}{2}) - \cos (\frac{π i}{2}) + \frac{π i}{2} + 3$

Step 1

To write $3$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$- \sin (\frac{π i}{2}) - \cos (\frac{π i}{2}) + \frac{π i}{2} + 3 \cdot \frac{2}{2}$

Step 2

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

$- \sin (\frac{π i}{2}) - \cos (\frac{π i}{2}) + \frac{π i}{2} + \frac{3 \cdot 2}{2}$

Step 3

Combine the numerators over the common denominator.

$- \sin (\frac{π i}{2}) - \cos (\frac{π i}{2}) + \frac{6 + π i}{2}$