Question

The unit vector perpendicular to resultant vector A=4i+3j+6k and b=-i+3j-8k is

Answer 1

Answer:

3i+6j-2k/7

Explanation:

A+B=(4i+3j+6k)+(-i+3j-8k)

=3i+6j-2k

unit vector =3i+6j-2k/√3^2+6^+2^2

=3i+6j-2k/7