SOLUTION: Which of these functions has period 7? A. y= sin(7/pi)x B. y= cot(7/pi)x C. y= cos(pi/7)x D. y= tan(pi/7)x

Question 799714: Which of these functions has period 7?
A. y= sin(7/pi)x
B. y= cot(7/pi)x
C. y= cos(pi/7)x
D. y= tan(pi/7)x
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Which of these functions has period 7?
A. y= sin(7/pi)x
B. y= cot(7/pi)x
C. y= cos(pi/7)x
D. y= tan(pi/7)x
--------------------
sine & cosine of x --> period of 2pi
tan and cot of x --> period of pi
---
tan(pi*x) --> period of 1
tan (pi*x/7) --> period of 7
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