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Write the Function in Terms of Its Cofunction $\cos 64 ^ { \circ }$

Question 52

Multiple Choice

Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.
- $\cos 64 ^ { \circ }$

A) $\cos 154 ^ { \circ }$
B) $\sin 64 ^ { \circ }$
C) $\sin 26 ^ { \circ }$
D) $\sec 26 ^ { \circ }$

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