Ryabushko A.P. IDZ 2.2 option 4
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Ryabushko A.P. IDZ 2.2 option 4
DHS 2.2
№.4. Given the vector. It is necessary to: a) calculate the mixed product of three vectors; b) Find the unit vector product; c) to calculate the inner product of two vectors; g) check whether collinear or orthogonal two vectors; e) verify whether the three vectors are coplanar. a (-7; 0; 2); b (2; -6 4); c (1, -3, 2).
№2.4. The tops of the pyramids are at points A (2; 4; 1); B (-3; -2; 4); C (3; 5; -2); D (4; 2; 3). ..........
№3.4. The strength of F (-4; 5, -7) is applied to point A (4, -2 and 3). Calculate a) the work force in the case; when its point of application; moving in a straight line; moves to point B (7, 0, -3); b) module force moment about the point B.
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