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Special Angles Explained | Derivation of 30° and 60° Trigonometric Ratios
Автор: Mr. Irabor Ibhafidon | I²–MATHS Academy
Загружено: 2025-12-13
Просмотров: 83
Описание:
In this lesson, I derive all the trigonometric ratios of the special angles 30° and 60° using a simple and clear method.
You will learn how to derive:
• sin 30°, cos 30°, tan 30°
• sec 30°, cosec 30°, cot 30°
• sin 60°, cos 60°, tan 60°
• sec 60°, cosec 60°, cot 60°
This video is perfect for WAEC, NECO, GCSE, IGCSE, JAMB, and secondary school students, as well as anyone preparing for mathematics exams.
📌 Note: The derivation of 45° is treated in a separate video.
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