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Introduction to sum and difference formulas.
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Classroom Contents
Sum and Difference Identities and Formulas - Sine, Cosine, Tangent
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- 1 Introduction to sum and difference formulas.
- 2 Find the sum of 105 degrees which is not on the unit circle.
- 3 Take a look at sum and difference formulas.
- 4 Find a sum or difference from the unit circle that is equal to 5 pi over 12
- 5 Verify the identity.
- 6 Ratio of sides of triangles.
- 7 Evaluate and write the trig value.
- 8 Verify using sum and difference.
- 9 Write as an algebraic expression.
- 10 Find all of the solutions of the equation in the interval 0, to2 pi
