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Introduction
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Classroom Contents
Sum and Difference Identities for Sine and Tangent
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- 1 Introduction
- 2 Formulas for sin(A + B) and sin(A - B)
- 3 Finding the exact value of sin 165°
- 4 Simplifying using difference identity for sine
- 5 Formulas for tan(A + B) and tan(A - B)
- 6 Finding the exact value of tan pi/12
- 7 Verifying a trigonometric identity with the sum identity for sine and cosine
- 8 Finding sin(θ + β), tan(θ + β) and the quadrant of θ + β
