Sum and Difference Identities for Sine and Tangent

Sum and Difference Identities for Sine and Tangent

GreeneMath.com via YouTube Direct link

Simplifying using difference identity for sine

4 of 8

4 of 8

Simplifying using difference identity for sine

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Sum and Difference Identities for Sine and Tangent

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

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