Write down the exact value of cos(90∘)\cos(90^\circ)cos(90∘)
Hence, write down the exact value of 3+7cos(90∘)3 + 7\cos(90^\circ)3+7cos(90∘)
219 exam-style questions on Eduqas GCSE Maths Exact trig values. Each one has a worked solution and a mark scheme showing where the marks go.