Question

If vectors are at right angles there cross product will be

Answer 1

The cross product is the result of multiplying the vectors together, and will result in a third vector that is perpendicular (i.e. at right angles, or orthogonal) to both of the original vectors. The cross product therefore has no meaning in a two-dimensional environment

Answer 2

$<b>$In mathematics and physics , the cross product or vector product (occasionally directed area product to emphasize the geometric significance) is a binary operationon two vectors in three-dimensional space (R^3)