Pre-Calculus

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`cos_wave` together, then # adding `sin_wave`...

Create a vector `wave` by multiplying `sin_wave` and `cos_wave` together, then

# adding `sin_wave` to the product# Use the `plot()` function to plot your `wave`!

# adding `sin_wave` to the product# Use the `plot()` function to plot your `wave`!

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