Evaluate the integral.

${\displaystyle \underset{0}{\overset{t}{}}}9si{n}^2()d$

$\frac{9t}{2}-\frac{9sin(2t)}{4}$

Determine whether the integral $is$ convergent $or$ divergent. $Ifitis$ convergent, evaluate $it.(If$ the quantity diverges,

enter DIVERGES.$)$

${\displaystyle \underset{0}{\overset{}{}}}9si{n}^2()d$

Great job!