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Mathematics, 11.02.2021 19:00 xxaurorabluexx
Find the angle between the diagonal of a cube of side length 15 and the diagonal of one of its faces, so that the two diagonals have a common vertex. The angle should be measured in radians. (Hint: we may assume that the cube is in the first octant, the origin is one of its vertices, and both diagonals start at the origin.)
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Find the angle between the diagonal of a cube of side length 15 and the diagonal of one of its faces...
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