Use the half-angle formulas to evaluate the given functions. cos 112.5
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Use the half-angle formulas to evaluate the given functions.
cos 112.5°
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The halfangle formula for cosine is cos2 sqrt1 cos 2 where the sign of the square root depend...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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