Question

Which of the following vector is perpendicular to the vector A = 2i + 3) + 4k ?
(1) i + i +
(2) 41 + 37 - 2
(3) i 3) +
(4) i +2j - 2K​

Answer 1

Answer:

Explanation:

A . B = 0 (perpendicular)

Suppose A is given and B is in option now make A.B=0 . Whichever value is zero considered as perpendicular