Re: greater of 2 no.
If a^2 > b^2 then a > b provided you stick to positive numbers.
So take each expression and square it.
You will be left with terms that still have a square root.
Simplify and square again.
At this stage you can make a direct comparison to determine which is bigger.
If you take a look at post 14 on the thread
you see a similar example.
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei