CPM Homework Help : PC Problem 6-97

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6-97.

Find the period of each function.

Hint:

Use the formula:
$pb = 2π$

$p =$ period
$b =$ frequency

y = 5 sin 3x
Hint (a):
$3$ is the frequency.

$y = \cos πx$
Hint (b):
$π$ is the frequency.

$y = \sin \frac { \pi x } { 5 }$
Hint (c):
$\frac{\pi}{5}$ is the frequency.

$y = \cos \frac { \pi x } { 5 }+ 3$
Hint (d):
$\frac{\pi}{5}$ is the frequency.

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