AQA AS Paper 1 2022 June — Question 4

Exam BoardAQA
ModuleAS Paper 1 (AS Paper 1)
Year2022
SessionJune
TopicTrig Equations

4 Find all the solutions of the equation $$\cos ^ { 2 } \theta = 10 \sin \theta + 4$$ for \(0 ^ { \circ } < \theta < 360 ^ { \circ }\), giving your answers to the nearest degree.
Fully justify your answer.