Write the expression in terms of its cofunction.
-tan 42°
A)cot 132°
B)sec 42°
C)cot 48°
D)cot 42°

Name: Write the expression in terms of its cofunction. -tan 42° A)cot 132° B)sec 42° C)cot 48° D)cot 42°
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Question

Quizplus · Accepted Answer

The cofunction of the tangent function is the cotangent function, and they are related by the identity tan(x) = cot(90° - x). Therefore, tan(42°) = cot(90° - 42°) = cot(48°).

Write the Expression in Terms of Its Cofunction