Question

Dados os vetores u=2i -3j , v=i-j e w =-2i+j , determine 3u-v/2-w /2

Answer 1

3u=6i-9j
v/2=i/2-j/2
w/2=-i+j/2

 3u-v/2-w /2 =6i-9j -(i/2-j/2)-(-i+j/2)

=6,5 i -9j