Question

11
104. Given : A=3î +2j+k and B =6î +4j+2k. The
two vectors A and B
(a) are parallel
(6) are perpendicular
(C) make an angle of 30° to each other
(d) make an angle of 60° to each other.​

Answer 1

Explanation:

Given: a =2i^+j^−3k^ and b =3i^−2j^−k^ ... =6 −2+3=7. ... Two adjacent sides of a parallelogram ABCD are given by AB ... The unit vectors orthogonal to - i +2j +2k and making equal angles with x and ...