How to use online integrators. (Online calculus course test homework solutions)

Sometimes you will run across really hard integrals without antiderivatives, so you may want to employ some powerful computer tools. An example of this would be the following hard exponential:




Follow this link to see how I did this:
http://www.wolframalpha.com/input/?i=integrate+e%5Ex%5E2+from+.19+to+.53