DP Mathematics | Legacy SL Booklet 05 | Original 20-page PDF

Original 20-page legacy teaching booklet by Dr Taylan Çeltik, retaining the original question numbers, equations, diagrams and selected worked material.

Trigonometric ratios, exact values, cofunctions, the unit circle, angles beyond 90 degrees and double-angle identities. This historical edition includes reciprocal-function material.

The acute-angle recording begins at Question 05-3 and includes Question 05-4, cofunctions and exact values. It changes the requested cot ratio to sin live and crosses out reciprocal-function columns. The video does not teach every exercise in the full booklet.

Includes the unchanged original PDF and a separate one-page clarification sheet covering that live change, quadrant signs and the missing quadrant condition in Question 05-25. Read these notes before using the printed answers.

The historical SL label predates the current Mathematics AA course. Follow the syllabus notes with the matching video.

Digital PDF download. Original scans and handwriting vary in contrast; zoom for small details. This is a historical teaching resource with selected answers, rather than a newly authored complete solutions pack.