How do you do 1 and 2 ? The rectangular box is supported from the ceiling by a b

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How do you do 1 and 2 ?

The rectangular box is supported from the ceiling by a ball-and-socket joint at corner A. Commencing from the position shown, the box is rotated about edge AB by 75 degree counterclockwise as viewed from A to B. Then the box is rotated about edge A C by 50 degree clockwise as viewed from A to C. Determine the magnitude of displacement of corner D due to these rotations. Starting from the position shown, the box is rotated by 40 degree about diagonal AB, clockwise as viewed from corner B toward corner A. Determine the coordinates of corner C relative to the fixed reference frame XYZ after this rotation.

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