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Compound Angle
What is compound angle?
The algebraic sum (+) or difference (-) of two or more angles is called a compound Angle.
For example, if α, β, γ are three given angles then each of the angles (α + β), (α - β), (β + γ), (β - γ), (α - β + γ), (β - γ - α) is called a compound angle.
Under compound angle we will deal with the trigonometrical ratios of compound angles and develop the formulae for these kinds of angles, and also study their application.
- Proof of Compound Angle Formula sin (α + β)
- Proof of Compound Angle Formula sin (α - β)
- Proof of Compound Angle Formula cos (α + β)
- Proof of Compound Angle Formula cos (α - β)
- Proof of Compound Angle Formula sin 22 α - sin 22 β
- Proof of Compound Angle Formula cos 22 α - sin 22 β
- Proof of Tangent Formula tan (α + β)
- Proof of Tangent Formula tan (α - β)
- Proof of Cotangent Formula cot (α + β)
- Proof of Cotangent Formula cot (α - β)
- Expansion of sin (A + B + C)
- Expansion of sin (A - B + C)
- Expansion of cos (A + B + C)
- Expansion of tan (A + B + C)
- Compound Angle Formulae
- Problems using Compound Angle Formulae
- Problems on Compound Angles
11 and 12 Grade Math
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