Question $7$

Evaluate ${\displaystyle \underset{0}{\overset{4}{}}}(3x-\frac{x^3}{4})dx$

Question $8$

$5$ pts

Evaluate ${\displaystyle \underset{1}{\overset{4}{}}}\frac{1}{x\sqrt[\phantom{2}]{x}}dx$

Question $9$

$5$ pts

Evaluate ${\displaystyle \underset{1}{\overset{4}{}}}\frac{dy}{2\sqrt[\phantom{2}]{y}(1+\sqrt[\phantom{2}]{y}{)}^2}$