Basic Math Examples

$P = {(1 \div \frac{r}{2})}^{2}$

Step 1

To divide by a fraction, multiply by its reciprocal.

$P = {(1 \frac{2}{r})}^{2}$

Step 2

Multiply $\frac{2}{r}$ by $1$ .

$P = {(\frac{2}{r})}^{2}$

Step 3

Apply the product rule to $\frac{2}{r}$ .

$P = \frac{2^{2}}{r^{2}}$

Step 4

Raise $2$ to the power of $2$ .

$P = \frac{4}{r^{2}}$