What are some cross product rules?

There are several cross product rules, including that a cross product is anticommutative. This is demonstrated by the fact that a x b = -b x a. The self cross product is a zero vector as well, shown by a x a = 0.

Another cross product rule or property is that a cross product is distributive. Therefore, a x (b+c) = (a x b) + (a x c). Also, the length of the cross product is equal to the area of a parallelogram, when the information supplied is from the same two vectors. A cross product is the end calculation, or vector, of two separate vectors. A cross product is perpendicular to the two vectors.