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Trigonometry

Write the expression as the sine, cosine, or tangent of an angle. cos 7x cos 4y + sin 7x sin 4y

Trigonometry (MindTap Course List)

8th Edition

ISBN:9781305652224

Author:Charles P. McKeague, Mark D. Turner

Publisher:Charles P. McKeague, Mark D. Turner

Chapter6: Equations

Section: Chapter Questions

Problem 26CLT: Rewrite the expression 4sin7xcos3x as a sum or difference, then simplify if possible.

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Write the expression as the sine, cosine, or tangent of an angle.

cos 7x cos 4y + sin 7x sin 4y

Figure in plane geometry formed by two rays or lines that share a common endpoint, called the vertex. The angle is measured in degrees using a protractor. The different types of angles are acute, obtuse, right, straight, and reflex.

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