Use your calculator to work out sin25∘+cos40∘cos25∘−sin40∘\displaystyle \frac{\sin 25^\circ + \cos 40^\circ}{\cos 25^\circ - \sin 40^\circ}cos25∘−sin40∘sin25∘+cos40∘
Write down all the figures on your calculator display.
Write your answer to part (a) correct to 2 decimal places.
Hence, write down the value of cos25∘−sin40∘sin25∘+cos40∘\displaystyle \frac{\cos 25^\circ - \sin 40^\circ}{\sin 25^\circ + \cos 40^\circ}sin25∘+cos40∘cos25∘−sin40∘ 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.