Trigonometric Compound Angle formulas used in the public examination for the entrance of the universities in Hong Kong.

Contents :-
1. Sine Formula
2. Cosine Formula
3. Tangent Formula
4. Compound Angle Formula
5. Subsidiary Angle Formula
6. Double Angle Formula
7. Triple Angle Formula
8. Half Angle Formula
9. T Formula
10. Product-To- Sum Formula
11. Sum-To- Product Formula
12. Principal Value
13. General solution For Trigonometric Functions