(Original post by TenOfThem)
This is based on the assumption that the OP is, in fact an A* student
In my experience of teaching GCSE the questions asked by Zed are not the questions that an A* student would be asking s
He considers himself an A* student, i don't know about GCSE but some of the question he asks can probably be done by someone who hasn't even done GCSE. Like this estimate question, i also think it is foolish to ask how to calculate such a value in a non-calc exam.
In my opinion, calculators shouldn't be used in a maths exam, the questions should be based upon giving exact values. There are some more drawbacks of them as well, Like a question i saw on another thread yesterday in which we had to find the exact value of tanx where sinx=1/2 and x is obtuse, and the suggestion given by the other guy was to do tan(arcsin(0.5)) in the calc.