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Using a Sum or Difference Identity, Write the Following as an Expression

Question 222

Multiple Choice

Using a sum or difference identity, write the following as an expression involving functions of x.
- 1−cos⁡66∘2\sqrt { \frac { 1 - \cos 66 ^ { \circ } } { 2 } }


A) tan⁡33∘\tan 33 ^ { \circ }
B) sin⁡33∘\sin 33 ^ { \circ }
C) cot⁡33∘\cot 33 ^ { \circ }
D) cos⁡33∘\cos 33 ^ { \circ }

Correct Answer:

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