Question $7(1$ point$)$

$($Select all that apply$)$ Which of the following integrals can be separated into two different integrals that are multiplied by each other?

${\displaystyle \underset{0}{\overset{\frac{}{4}}{}}}{\displaystyle \underset{1}{\overset{r1}{}}}{r}^{2}cosdrd$

${\displaystyle \underset{0}{\overset{\frac{}{4}}{}}}{\displaystyle \underset{1}{\overset{3}{}}}{r}^2$ccos$drd$

${\displaystyle \underset{0}{\overset{\frac{}{4}}{}}}{\displaystyle \underset{1}{\overset{3}{}}}cos(r)rdrd$

${\displaystyle \underset{0}{\overset{4}{}}}{\displaystyle \underset{}{\overset{2}{}}}{r}^{2}cosdrd$