Worked solutions for OCR B (MEI) A-Level Maths (H640): trigonometric graphs and exact values, all in degrees. 30 exam-style questions with every line of working explained, each step annotated with MEI ...
One circle, three graphs. 17 slides build sin, cos and tan from the unit circle, then cover exact values, CAST, related-angle rules (90° − θ, 180° ± θ, 360° − θ) and solving equations from 0° to 360°.
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