3 Steps to Sketch - Graph y=cos((pi/2)x)

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Sketch the cosine graph y=cos((pi/2)x) in 3 easy steps!
Step #1: Find the Essentials
Step #2: Plot Key Points
Step #3: Sketch and Repeat!

Use this easy method to graph any basic (unshifted) cosine graph.

For more cosine examples:

For sine graphing examples:

For tangent graphing examples:
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