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 OCR GCSE Maths Using a Calculator with exam-style questions for Foundation and Higher tier. 56 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.