Question

Given the vectors:

a= 12i + 12j -10k

b= 15i + 6j - 6k

c= -1i -16j +11k.

Calculate a x b and the scalar product b . a

a)  c=(78,12,0), -168

b) c=(78,12,0), -177​​​​​​​

c) c=(-12,-78,-108), 312​​​​​​​

d) c=(-12,-78,-108), -168​​​​​​​

e) None of the answers.

Thank you.

Answer 1