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Use an Identity to Write the Expression as a Single $\sqrt { \frac { 1 + \cos 22 ^ { \circ } } { 2 } }$

Question 394

Multiple Choice

Use an identity to write the expression as a single trigonometric function or as a single number.
- $\sqrt { \frac { 1 + \cos 22 ^ { \circ } } { 2 } }$

A) $\cos 11 ^ { \circ }$
B) $\tan 11 ^ { \circ }$
C) $\sin 11 ^ { \circ }$
D) $\cot 11 ^ { \circ }$

Use an Identity to Write the Expression as a Single 1+cos⁡22∘2\sqrt { \frac { 1 + \cos 22 ^ { \circ } } { 2 } }21+cos22∘​​

Multiple Choice

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Use an Identity to Write the Expression as a Single $\sqrt { \frac { 1 + \cos 22 ^ { \circ } } { 2 } }$

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