Concept explainers
Exercises 82-84 will help you prepare for the material covered in the first section of the next chapter The exercises use identities, introduced in Section 5.2 , that enable you to rewrite trigonometric expressions so that they contain only sines and cosines:
In Exercises 82-84 i5 rewrite each expression by changing to sines and cosines Then simplify the resulting expression
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Algebra and Trigonometry Plus MyLab Math with eText -- Title-Specific Access Card Package (6th Edition)
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