In Exercises 6568, use the half-angle formulas to simplify the expression. 65. 1 cos 6x
Chapter 6, Problem 66(choose chapter or problem)
In Exercises 65–68, use the half-angle formulas to simplify the expression.
\(\sqrt{\frac{1+\cos 4 x}{2}}\)
Text Transcription:
sqrt 1 + cos 4x / 2
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