Let a rectangular x y -coordinate system be obtained by rotating a rectangular
Chapter 7, Problem 13(choose chapter or problem)
Let a rectangular x y -coordinate system be obtained by rotating a rectangular xy-coordinate system counterclockwise through the angle = /3. (a) Find the x y -coordinates of the point whose xy-coordinates are (2, 6). (b) Find the xy-coordinates of the point whose x y -coordinates are (5, 2).
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