Question

What is a null vector?​

Answer 1

Answer:

In mathematics, given a vector space X with an associated quadratic form q, written, a null vector or isotropic vector is a non-zero element x of X for which q(x) = 0. In the theory of real bilinear forms, definite quadratic forms and isotropic quadratic forms are distinct.

Answer 2

Explanation:

A vector that has no magnitude or a definite direction is null vector.