Write the expression in terms of its cofunction.
-sin 38°
A)tan 52°
B)cos 52°
C)cot 52°
D)cos 38°

Name: Write the expression in terms of its cofunction. -sin 38° A)tan 52° B)cos 52° C)cot 52° D)cos 38°
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Question

Quizplus · Accepted Answer

The cofunction of sine is cosine, and the relationship between the angles in a right triangle gives us sin(θ) = cos(90° - θ). Therefore, sin(38°) = cos(52°).

Write the Expression in Terms of Its Cofunction