Trigonometric Equations | OCR A-Level Maths | 40 Worked Examples (H240)

A complete, fully worked question pack on Trigonometric Equations for OCR A-Level Mathematics A (H240, content point 1.05o). 40 questions ramp from Easy to Challenging, each solved line by line with a plain-English reason on every step and OCR-style mark-scheme annotations (M1/A1/B1) folded in on the real award lines. Covers the full 1.05o scope: solving sin, cos and tan equations in a given interval in both degrees and radians, reference angles and the CAST quadrant method, equations involving multiples of the unknown angle (widening the interval, then dividing back), phase shifts, quadratic equations in a single trig ratio, and the Stage 2 extensions using the Pythagorean identities (sin squared plus cos squared, sec squared and cosec squared) and the double-angle formulae. Includes a detailed-reasoning (DR) question in the exact OCR style and a 7-mark stretch-and-shift finisher. Modelled directly on OCR H240 past-paper wording and answer-format conventions (exact form for radians, 1 decimal place for inexact angles). Ideal for revision, homework, cover lessons and one-to-one tuition. Answers are self-contained, so students can self-mark. Hand-written and mark-scheme accurate.