Addition and Subtraction Formulas in Trigonometry
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Flashcards covering the key concepts from the lecture on addition and subtraction formulas in trigonometry.
Last updated 6:06 AM on 3/25/26
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6 Terms
1
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What is the Sum Formula for Sine?
2
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What is the Sum Formula for Cosine?
3
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What is the Sum Formula for Tangent?
4
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What is the Difference Formula for Sine?
ext{sin}(s - t) = ext{sin}(s) ext{cos}(t) - ext{cos}(s) ext{sin}(t).
5
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What is the Difference Formula for Cosine?
ext{cos}(s - t) = ext{cos}(s) ext{cos}(t) + ext{sin}(s) ext{sin}(t).
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What is the Difference Formula for Tangent?
ext{tan}(s - t) = rac{ ext{tan}(s) - ext{tan}(t)}{1 + ext{tan}(s) ext{tan}(t)}.
