Specialist Mathematics Β· Unit 2 Β· Trigonometry and functions Β· Trigonometric identities

Convert sums π‘Ž cos(π‘₯) + 𝑏 sin(π‘₯) to 𝑅 cos(π‘₯ Β± 𝛼) or 𝑅 sin(π‘₯ Β± 𝛼) and apply these to sketch graphs.

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Model and solve problems that involve equations of the form π‘Ž cos(π‘₯) + 𝑏 sin(π‘₯) = 𝑐.
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