We went over this stuff in class, and I was fine doing the examples, but now I can't do the homework.

The first is:

Integral of (sec(x)dx)/(sqrt(secx+tanx))

Any hints or ideas of where I can start?

Also:

Find the derivative, logarithmically, of y = (x*sin(x))/sqrt(sec(x))

I tried this one just using the quotient rule for derivatives, and it turned out pretty bad.