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If given these functions , how many of them are sinusoidal

If given these functions , how many of them are sinusoidal-example-1
User Long Pham
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Solution:

A sinusoidal function is one with repetitive oscillations.

Given the functions below:

The sinusoidal functions are:

Hence, there are 2 sinusoidal functions.

If given these functions , how many of them are sinusoidal-example-1
If given these functions , how many of them are sinusoidal-example-2
User Algreat
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