Option 6 DHS 2.1
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DHS - 2.1
No. 1.6. Given the vector a = α · m + β · n; b = γ · m + δ · n; | m | = k; | n | = ℓ; (m; n) = φ;
Find: a) (λ · a + μ · b) · (ν · a + τ · b); b) the projection (ν · a + τ · b) on b; c) cos (a + τ · b).
Given: α = 2; β = -5; γ = -3; δ = 4; k = 2; ℓ = 4; φ = 2π / 3; λ = 3; μ = -4; ν = 2; τ = 3.
No. 2.6. The coordinates of points A; B and C for the indicated vectors to find: a) the modulus of the vector a; b) the scalar product of vectors a and b; c) the projection of the vector c on the vector d; d) coordinates of the point M dividing the segment ℓ with respect to α :.
Given: A (- 1; –2; 4); B (–1; 3; 5); C (1; 4; 2); .......
No. 3.6. Prove that the vectors a; b; c form a basis and find the coordinates of the vector d in this basis.
Given: a (3; 1; 2); b (–7; –2; –4); c (–4; 0; 3); (16; 6; 15).
No. 1.6. Given the vector a = α · m + β · n; b = γ · m + δ · n; | m | = k; | n | = ℓ; (m; n) = φ;
Find: a) (λ · a + μ · b) · (ν · a + τ · b); b) the projection (ν · a + τ · b) on b; c) cos (a + τ · b).
Given: α = 2; β = -5; γ = -3; δ = 4; k = 2; ℓ = 4; φ = 2π / 3; λ = 3; μ = -4; ν = 2; τ = 3.
No. 2.6. The coordinates of points A; B and C for the indicated vectors to find: a) the modulus of the vector a; b) the scalar product of vectors a and b; c) the projection of the vector c on the vector d; d) coordinates of the point M dividing the segment ℓ with respect to α :.
Given: A (- 1; –2; 4); B (–1; 3; 5); C (1; 4; 2); .......
No. 3.6. Prove that the vectors a; b; c form a basis and find the coordinates of the vector d in this basis.
Given: a (3; 1; 2); b (–7; –2; –4); c (–4; 0; 3); (16; 6; 15).
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