Use your calculator to work out $$\frac{\sin 25^\circ + \sin 40^\circ}{\cos 25^\circ - \cos 40^\circ}$$ (a) Write down all the figures on your calculator display - Edexcel - GCSE Maths - Question 8 - 2017 - Paper 2

First, input the values into the calculator.

Using a scientific calculator, we compute:

• Calculate (\sin 25^\circ): approximately (0.4226)

• Calculate (\sin 40^\circ): approximately (0.6428)

• Add these two results: $\sin 25^\circ + \sin 40^\circ \approx 0.4226 + 0.6428 = 1.0654$

• Calculate (\cos 25^\circ): approximately (0.9063)

• Calculate (\cos 40^\circ): approximately (0.7660)

• Subtract these two results: $\cos 25^\circ - \cos 40^\circ \approx 0.9063 - 0.7660 = 0.1403$

• Now, we divide the two results: $\frac{1.0654}{0.1403} \approx 7.5976257$

Therefore, the figures on the calculator display are approximately 7.5976257.