VectorHard
Question
If the position vectors of three points A, B, C are respectively î + ĵ + 
, 2î + 3ĵ − 4
and 7î + 4ĵ + 9
, then the unit vector perpendicular to the plane of triangle ABC is-
, 2î + 3ĵ − 4 and 7î + 4ĵ + 9, then the unit vector perpendicular to the plane of triangle ABC is-Options
A.31î − 18ĵ − 9
B.
C.
D.-None of these
More Vector Questions
Let and . If the vector lies in the plane of and , then x equals...The zero vector has-...Let = 3ĵ + 4, = î + ĵ and let and be component vectors of b parallel and perpendicular to a. If , the is ...Let , and be three non-zero vectors such that no two of them are collinear and ( × ) × = 1/3||||. If θ is...If the vectors 3î − 2ĵ + 5 and −2î + pĵ − q are collinear, then (p,q) is-...