Simplify: cos 27 cos 16 + sin 27 sin 16.

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Simplify: cos 27° cos 16° + sin 27° sin 16°.

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Algebra And Trigonometry Graphs And Models

ISBN: 9780134179049

6th Edition

Authors: Marvin Bittinger, Judith Beecher, David Ellenbogen, Judith Penna

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