Question

Q.19. The necessary condition for two
vectors A and B to be
perpendicular, is
*
O A XxB 1 = 1
O A \xB6=0
O A 1.B X=0
O A X.B X=1​

Answer 1

Answer:

I did not understand the question

I did not understand what are u saying

Explanation:

please answer the question