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5.4: Sum and Difference Formulas

5.4: Sum and Difference Formulas

Author: Chris Melograna
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Notesheet for 5.4


Sum and difference formulas for Sine and Cosine

Sum and difference formula for Tangent

Sum and difference when in radians

Using sum/difference formulas to verify identities

Using sum/difference formulas with right triangles

Working backwards with sum and difference formulas