Use your calculator to work out tan75∘+1tan75∘−1\displaystyle \sqrt{\frac{\tan 75^\circ + 1}{\tan 75^\circ - 1}}tan75∘−1tan75∘+1
The answer to part (a) is 1.316074013.
Write your answer to part (a) correct to 3 significant figures.
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.