Задача 56523 ...

5fe42a0a1c6d1142ab51735e

25.12.2020 08:32:53

5. a = (−2; 4; 1), b = (1; 7; −8), c = (−3; −2; 5), d = (−4; −6; 1)

15. A₁(0; 3; −1), A₂(2; 5; −4), A₃(−2; 2; 1), A₄(−3; −1; 0)