Evaluate the given functions with the following information: sin = 4 5 ( in first quadrant)
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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 the full answer
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Related Book For
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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