A rectangular -coordinate system is obtained by first rotating a rectangular
Chapter 7, Problem 12(choose chapter or problem)
A rectangular -coordinate system is obtained by first rotating a rectangular xyz-coordinate system 60 counterclockwise about the z-axis (looking down the positive z-axis) to obtain an -coordinate system, and then rotating the -coordinate system 45 counterclockwise about the -axis (looking along the positive -axis toward the origin). Find a matrix A such that where and are the xyz- and -coordinates of the same point.
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