I'm looking in A-Level textbooks for examples of "simplification".
On the first page of content in this EdExcel C1 book, this made me so cross: you're not applying the rule (a^m)^n=a^(mn), you first need (ab)^n=a^n b^n, but that rule isn't even listed!
In reply to @christianp
This is more what I was looking for: in the C3 book, they ask you to simplify "sin(θ)cos(θ)(sec(θ)+cosec(θ))". The answer they give is "sin(θ)+cos(θ)".
So do they mean "put it in terms of sin and cos"?
I suppose @sangwinc has written something about this. Must get his book out...