Question

Дано: a (0;10;1) b (-7;6;-3) Найти c= 3a + 0,5b

Answer 1

С=3А+0.5В 3А (0*3; 10*3; 1*3)=(0; 30; 3) 0.5В ((-7)*0.5; 6*0.5; (-3)*0.5)=(-3.5;3;-1.5) 3А+0.5В (0+(-3.5);30+3;3+(-1.5))=(-3.5; 33.3; 1.5)