About Problem 5 still, note that you have to enter the function
<pre>
(1/Sqrt[t])
</pre>
and not
<pre>
Sqrt[1/t]
</pre>
which for some reason does not work. Similarly, use
<pre>
(1/t^(3/2))
</pre>
and not
<pre>
(1/t)^(3/2))
</pre>
which again, for some strange reasons does not work.
</ul>