This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the ...

This Bitesize article references Edexcel physics past papers, explores practice questions and worked examples to help students prepare for physics GCSE exams.

For Warren Li, 12, subjects such as trigonometric functions and differential calculus are all in a day’s work and he is now on the way to a degree-level understanding of the subject.