Exact Trigonometric Values | 40 Worked Examples | Edexcel GCSE Higher Maths

40 progressive Edexcel GCSE Higher (1MA1) exact trigonometric values questions with full mark-scheme style worked solutions.

What’s inside:
Easy: recalling the exact sine, cosine and tangent values for 0, 30, 45, 60 and 90 degrees straight from memory, including why tan 90 is undefined.
Medium: combining exact values in short calculations, finding exact triangle side lengths left as simplified surds, and solving simple trig equations for 0 to 90 degrees.
Hard: using area = half ab sin C to find exact surd areas, verifying trig identities such as sin squared plus cos squared equals 1, finding exact perimeters, and solving trig equations with two solutions between 0 and 360 degrees.

Every solution shows every step, keeping surds fully simplified and rationalised, with the marks annotated at exactly the point each would be awarded. Typeset in LaTeX for clean mathematical notation.

Ideal for: Year 10 and 11 students sitting Edexcel GCSE Higher Mathematics (1MA1), plus tutors and teachers building targeted practice. Print-friendly, hand straight to students.