math
posted by Kory .
What is the rule for finding coordinates after a 90 degree rotation?
after a 180 degree rotation? after a 270 degree rotation?

Assume a circle with a radius of i(r=1)
@ 0 Degrees: = 1, and Y = 0.
@ 90 Degrees: X = 0, and Y = 1.
@ 180 Degrees: X = 1, and Y = 0.
@ 270 Degrees: X = 0, and Y = 1.
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