In each of the following, find a formula for the linear transformation on ℝ3 that represents the geometric operation.
(a) Dilation by a factor of 6
(b) Dilation by a factor of
(c) Counterclockwise rotation about the z-axis by 60°
(d) Clockwise rotation about the z-axis by 45°
(e) Coordinate rescaling by 4 in the x-direction, 2 in the y-direction, and in the z-direction
(f) Clockwise rotation by 30° about the y-axis
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