Sum and Difference Formulas

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Pre-Calculus

sin(u+v)

(sinu)(cosv) + (cosu)(sinv)

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sin(u-v)

(sinu)(cosv) - (cosu)(sinv)

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cos(u+v)

(cosu)(cosv) - (sinu)(sinv)

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cos(u-v)

(cosu)(cosv) + (sinu)(sinv)

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tan(u+v)

tanu + tanv/1 - (tanu)(tanv)

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tan(u-v)

tanu - tanv/1 + (tanu)(tanv)

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