Does the term "sinusoidal" refer to BOTH cos graphs and sine graphs?

1 Answer
Daniel H.
Mar 3, 2018

Yes, sinusoidal refers to periodic motion

Explanation:

Since Sin and Cos both exhibit periodic behavior and alternate with a range between -1 and +1 in a continuous wave, they are termed 'sinusoidal'.

Tan is periodic, but not continuous, so it is not considered to be sinusoidal.

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