C3 Trigonometry - Trigonometric equations
C3 Trigonometry - Trigonometric equations PhysicsAndMathsTutor.com. 1. (a) Express 5 cos x – 3 sin x in the form R cos(x + α), where R > 0 and 0 < α < . 2 1 π (4) (b) Hence, or otherwise, solve the equation
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