The value of cos 40° is the same as which of the following?
A. sin 50°
B. sin(–40°)
C. cos(–50°)
D. cos 140°
Answer:A
The value of cos 40° is the same as which of the following?
A. sin 50° B. sin(–40°) C. cos(–50°) D. cos 140°
Explanation: A