Question

If the vectors Ā = 3i - 2j+ xk and B = 2i +4j-k are perpendicular to each other, then the value of x
is:​

Answer 1

Answer:

X= - 2

Explanation:

If two vectors are perpendicular to each other means A. B=0

(3i-2j+xk). (2i+4j-k) =0

(3i. 2i) - (2j. 4j) -(xk. K) = 0

6-8-x=0

X= -2