Question

v) If A, B and C are three vectors, then
which of the following is not correct?
(A) A.(B+C) = A.B+AC
(B) AB=B-A
(C) Āx B=BxĀ
(D) Ax(B+C) = AxB+BxC​

Answer 1

Answer:

(C) A×B=B×A

Explanation:

If A,B and C are three vectors then

* A.(B+C) = A.B + A.C

* A.B = B.A

* A×B ≠ B×A (A×B = - B×A)

* A×(B+C) = A×B + A×C