Use the Half-Angle Formula to Simplify the Given Expression $$\sqrt { \frac { 1 + \cos 16 x } { 2 } }$$

question 44

Multiple Choice

Use the half-angle formula to simplify the given expression.
$$\sqrt { \frac { 1 + \cos 16 x } { 2 } }$$

• A) \(\cos 32 x\)
• B) \(\cos 8 x\)
• C) \(\cos 16 x\)
• D) \(\cos 64 x\)
• E) \(\cos 4 x\)

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