Find a unit vector perpendicular to both the vector ` vec(a) = 2 hat(i) + hat(j) - 2 hat(k)
Channel: Doubtnut
Date: 2020-05-09

Find a unit vector perpendicular to both the vector ` vec(a) = 2 hat(i) + hat(j) - 2 hat(k) and vec(b) = 3 hat (i) - hat (j) + hat (k) `