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Asked by Kirky

1. What is the period of the function?
y = 4 cos pi x
A. 1
B. 2
C. pi
D. 2pi

2. Which represents the reference angle for 2pi/3?
A. 2pi/3
B. pi/3
C. pi/4
D. pi/6
11 years ago

Answers

Answered by Steve
the period of cos(kx) is 2pi/k
So, cos(pi x) has period 2

#2 pi/3
11 years ago
Answered by Steve is a C u u n n t t
Yis
7 years ago
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