Use your calculator to work out sin20∘+cos40∘cos20∘−sin40∘\displaystyle \frac{\sin 20^\circ + \cos 40^\circ}{\cos 20^\circ - \sin 40^\circ}cos20∘−sin40∘sin20∘+cos40∘
Write down all the figures on your calculator display.
Write your answer to part (a) correct to 2 decimal places.
192 exam-style questions on OCR GCSE Maths Using a Calculator. Each one has a worked solution and a mark scheme showing where the marks go.