Question: Evaluate the given functions with the following information: sin = 4 5 ( in first quadrant) and cos = 12 13 ( in
Evaluate the given functions with the following information: sin α = 4 5 (α in first quadrant) and cos β = −12 13 (β in second quadrant).
cos(α + β)
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We can use the sum formula for cosine to solve for cos cos cos cos sin sin To use this fo... View full answer
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