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###### Rotation of Axes Determine the XY-coordinates of the given point if the coordinate axes are rotated through the indicated angle. $$ (-2,1), \quad \phi=30^{\circ} $$

Rotation of Axes Determine the XY-coordinates of the given point if the coordinate axes are rotated through the indicated angle. $$ (-2,1), \quad \phi=30^{\circ} $$

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