Trigonometry - R-Formula and Trigonometric Extrema

Trigonometry - R-Formula and Trigonometric Extrema

Express \(10\) \(\cos \theta - 4\) \(\sin \theta\) in the form of \(R \cos(\theta + \alpha)\) where \(\alpha\) is in degrees.

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Answer:\(\sqrt{116}\cos(\theta+21.8^\circ)\)

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