Work out 182+212−200cos(40) \sqrt{18^2 + 21^2 - 200 \cos(40)}\,182+212−200cos(40)
Write down all the figures on your calculator display.
Practise Edexcel GCSE Maths Using a Calculator with exam-style questions for Foundation and Higher tier. 56 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.