How to Simplify Trig Expressions Using the Double-Angle Formula | Trigonometry #maths #trigonometry
0:16
YouTube3A Maths
How to Simplify Trig Expressions Using the Double-Angle Formula | Trigonometry #maths #trigonometry
Learn how to simplify trigonometric expressions step by step using the double-angle formula! In this video, we break down how to factor and simplify expressions like: sin⁴x - 2sin²x cos²x + cos⁴x Watch how we apply cos2x = cos²x - sin²x to reach the simplest form. Perfect for GCSE, IGCSE, Edexcel, A-Level, and beyond! 🔔 Don't forget ...
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