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How are graphs of sine and cosine functions alike?

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The basic sine and cosine functions have a period of 2pi. Sine is odd, so its graphic is symmetric about the origin. Cos is even, so its graph is symmetric about the y-axis.

Example of a graph of sine:

Cos graph:

How are graphs of sine and cosine functions alike?-example-1
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User Kris Kumler
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