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Overview of this lesson

Ready to dive into some more math?

In this lesson we are going to derive a powerful formula which will calculate where any point (x,y) goes afterrotation by an angle θ about the origin.
The formulas we'll end up with are:

What do I need to know before starting?

To derive the rotation formulas we are going to use the basic trig ratios sine and cosine. If you don't remember these ratios you can click here to watch a video review.

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