首页>英语角 > 听力 > 美音 > 课 程 > 数学 > 高三>How To Do Trigonometric Equations
Maths Tutor Patrick McCarthy is on hand to teach you how to do trigonometric equations. The mechanics of sin, cos and tan can be bewildering, Patrick helps guide you through the basics with this guide and even shows a few cheats to save you time.
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