IDZ Ryabushko 2.2 Variant 7
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Number 1 are given the vector. It is necessary: a) to calculate the mixed product of three vectors; b) find the module of the vector product; c) calculate the scalar product of two vectors; d) check whether two vectors are collinear or orthogonal; e) check whether the three vectors are coplanar. a (4; -1; 3); b (2; 3; -5); c (7; 2; 4)
No. 2 The vertices of the pyramid are located at points A (–4; 6; 3); B (3; –5; 1); C (2; 6; –4); D (2; 4; –5) ...
No. 3 Force F (5; 4; 11) is applied to point A (6; 1; –5). Calculate a) the work of force in the case; when is the point of her application; moving in a straight line; moves to point B (4; 2; –6); b) the modulus of the moment of force with respect to point B.
No. 2 The vertices of the pyramid are located at points A (–4; 6; 3); B (3; –5; 1); C (2; 6; –4); D (2; 4; –5) ...
No. 3 Force F (5; 4; 11) is applied to point A (6; 1; –5). Calculate a) the work of force in the case; when is the point of her application; moving in a straight line; moves to point B (4; 2; –6); b) the modulus of the moment of force with respect to point B.
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