AP Precalculuseasymcq1 pt
cos(−x) equals
A.cos x
B.−cos x
C.sin x
D.0
Explanation
Core Concept
Cosine is an even function.
Correct Answer
Acos x
More Unit 3: Trigonometric and Polar Functions practice questions
- easyThe polar point with θ = π and r = 5 is the rectangular point
- mediumThe amplitude and period of f(x) = 4sin(x/2) are
- easycos(π/4) equals
- easysin(π/4) equals
- easyThe rectangular point (1, 0) in polar form is
Practice more AP Precalculus questions with full explanations
Practice Unit 3: Trigonometric and Polar Functions Questions →