Question

If a = 3i – 2j+k, b = 2i - j-3k and c=i-2; -2k,
then find (2a - 3b + 4c).
Find the unit vector​

Answer 1

Step-by-step explanation:

Here vector (3a + 2b) = 5i + 7j + 9k, vector (3a - 2b) = i - j - 3k Let vector r be perpendicular to the vectors (3a + 2b) and vector (3a - 2b). Therefore, the unit vector perpendicular to both of the vectors (3a + 2b) and vector (3a - 2b) is, Read more on Sarthaks.com - https://www.sarthaks.com/577749/find-unit-vector-perpendicular-to-both-of-the-vectors-and-vector-2b-where-vector-vector-2j