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- Sat Jan 12, 2013 6:38 pm
- Forum: Higher Secondary Level
- Topic: Trigonometric Proof
- Replies: 1
- Views: 2747
Trigonometric Proof
Hello! This is my first post on this wonderful forum, and I hope one of many more to come. Here is the first question to be posed: Prove, in as elegant a manner as possible, that \[\sin x = 2^n \cdot \cos \frac {x}{2} \cdot \cos \frac{x}{x^2} \cdot \cdot \cdot \cos \frac {x}{2^n} \cdot \sin \frac{x}...