SOLUTION: What is the period of y=1/3cos x/2?

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Question 419958: What is the period of y=1/3cos x/2?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
The b in both of the graph types
y+=+a+sin+bx
y+=+a+cos+bx
affects the period (or wavelength) of the graph.
The period is the distance (or time) that it takes for the sine or cosine curve to begin repeating again.
The period is given by:
math expression period=2%28pi%29%2Fb
Note: As b gets larger, the period decreases.

What is the period of y=%281%2F3%29cos+%28x%2F2%29


since bx=+x%2F2....->..
period=2%28pi%29%2F%281%2F2%29

period=2%283.14%29%2F%281%2F2%29

period=6.28%2F%281%2F2%29

period=2%2A6.28

period=12.56%29