Concept explainers
DISCOVER ■ PROVE: More Reduction Formulas By the Angle-Side-Angle Theorem from elementary geometry, triangles CDO and AOB in the figure to the right arc congruent. Explain how this proves that if B has coordinates (x, y), then D has coordinates (− y, x). Then explain how the figure shows that the following reduction formulas are valid:
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Chapter 5 Solutions
PRECALCULUS LL + WEBASSIGN/COREQUISITE
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