Question

Dados os vetores u = (-3,4) e v= (1,-5), determinar 3u+2v e 3u-2v

Answer 1

3u+2v = 3(-3+4) + 2(1-5) = -9+12+2-10= -5

3u-2v = 3(-3+4) - 2(1-5) = -9+12-2+10= 24