Edexcel Mathematics October 2021 · Paper 2 · Question 4 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

October 2021 · Paper 2 · Question 4 · 3 marks

4. Given that θ is small and measured in radians, use the small angle approximations to show that 4 sin θ 2 + 3 cos2 θ » a + b θ + c θ 2 where a, b and c are integers to be found. (3) 9