Question
Graph the given function over the interval $[-2 p, 2 p]$, where $p$ is the period of the function.$$y=\cos (6 \pi x)$$
Step 1
The period of a cosine function is given by $\frac{2\pi}{|b|}$, where $b$ is the coefficient of $x$ in the function. In this case, $b = 6\pi$. So, the period $p$ is $\frac{2\pi}{6\pi} = \frac{1}{3}$. Show more…
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