Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.
-cos 33°
A)cos 123°
B)sin 57°
C)sec 57°
D)sin 33°

Name: Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle. -cos 33° A)cos 123° B)sin 57° C)sec 57° D)sin 33°
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Question

Quizplus · Accepted Answer

The cofunction identity states that sin(90° - θ) = cos(θ) for acute angles. Therefore, sin(57°) = cos(33°) because 90° - 33° = 57°.

Write the Function in Terms of Its Cofunction