First make sure that $x$ and $c$ are unassigned variables and then enter the Maple command

assume $(c>0$;

This tells Maple that $c$ is a postive real number. $($You will see more on using "assume" later.$)$

Next, calculate the improper definite integral of

$(8sin(x)+5cos(x))e^{-cx}$

for $x$ from $0$ to $$ and assign this to the variable ans$1.($Notice that Maple displays $c$ as $c$ to

indicate it that an assumption has been made about $c.)$

Finally calculate the limit of $c$ times ans $1$ as $c$ tends to infinity and enter the limit in the box

below. $($Enter your answer exactly using Maple syntax, not as a decimal.$)$