Edexcel Mathematics June 2022 · Paper 1 · Question 14 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

June 2022 · Paper 1 · Question 14 · 8 marks

14. In this question you must show all stages of your working. Solutions relying entir ely on calculator technology are not acceptable. (a) Given that 2 sin (x − 60°) = cos (x − 30°) show that tan x = 3 3 (4) (b) Hence or otherwise solve, for 0  θ < 180° 2 sin 2θ = cos (2θ + 30°) giving your answers to one decimal place. (4) 39 40 41

Lesson: Definitions of Sine, Cosine and Tangent and Exact Values