So our lecturer gives us an assignment to be completed every week with ten questions on it. The assignments are unique to each student with the same type of questions but with different numbers for each student, but there is also a sample paper that we can ask tutors for help with.

There are two questions that I'm completely clueless with and need to know how to do, I'm not so much interested in the answer as I am in the technique of how to solve the question so if you could describe the solution step by step I'd appreciate it!

And just so I can't be accused of trying to get people to do my assignment here's a link to assignment page log in as a guest and choose sheet 5 and you'll see both questions there.

http://alberti.nuigalway.ie:8125/exquery.html