Даны векторы а(4,- 2, -4) в(6, -3, 2) Вычислить /2а-в/
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
↑а = (4; - 2 ; - 4) ↑b = (6; - 3 ; 2)2↑a = (4·2 ; - 2·2 ; - 4·2) = (8 ; - 4 ; - 8)
2↑a - ↑b = (8 - 6 ; - 4 - (- 3) ; - 8 - 2) = (2 ; - 1 ; - 10)
|2↑a - ↑b| = √(2² + (-1²) + (-10)²) = √(4 + 1 + 100) = √105