Rotating Coordinate Systems The xy-coordinate system is
Chapter 7, Problem 636(choose chapter or problem)
Rotating Coordinate Systems The xy-coordinate system is rotated through the angle 45 to obtain the -coordinate system. (a) If the coordinates of a point in the xy-coordinate system are what are the coordinates of the rotated point in the -coordinate system? (b) If the coordinates of a point in the -coordinate system are what are the coordinates of the point in the xy-coordinate system that was rotated to it?
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