Question 1 - A-Level Maths

Edexcel C3 — Question 1

Exam Board	Edexcel
Module	C3 (Core Mathematics 3)
Topic	Trig Equations

(a) Find the exact value of $x$ such that

$$3 \arctan ( x - 2 ) + \pi = 0$$ (b) Solve, for $- \pi < \theta < \pi$, the equation $$\cos 2 \theta - \sin \theta - 1 = 0$$ giving your answers in terms of $\pi$.

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