Continuing with our series of videos covering all the questions from the 2018 Edexcel Higher Tier GCSE Maths Paper 3, Best Maths Tutors covers question 5 which is about Trigonometry. Here we are asked to use basic SOHCAHTOA trigonometry in a right angled triangle, and in this case, we have to identify that it is the Cosine function that we need. Then the question goes on to ask us whether the cosine of the angle would increase if there was a change in the size of the hypotenuse .
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