Question

dados os vetores u=(2,3,-4) e v=(-6,1,5),efetue a)2u+3v sendo u-v

Answer 1

a)  2u + 3v =

2 (2, 3, -4) + 3 (-6, 1, 5) =  

(4, 6, -8) + (-18, 3, 15) =

(-14, 9, 7)

b) u - v =

(2, 3, -4) - (-6, 1, 5) =

(8, 2, -9)