2
QuizMultiple Choice
Graphing Sine and Cosine Functions
Question 2 • Common Core Precalculus - MA3112 Quarter 1
Which statement illustrates why cosine is an even function?
Answer
A
Cosine (StartFraction pi Over 4 EndFraction) = negative cosine (StartFraction 5 pi Over 4 EndFraction)
B
Cosine (StartFraction pi Over 4 EndFraction) = negative cosine (StartFraction 4 pi Over 4 EndFraction)
C
Cosine (negative StartFraction pi Over 4 EndFraction) = cosine (StartFraction 4 pi Over 4 EndFraction)
D
Cosine (StartFraction negative 7 pi Over 6 EndFraction) = cosine (StartFraction 5 pi Over 4 EndFraction)