Question

examples for negative unit normal vector​

Answer 1

What is the Negative of a Vector?

Vectors having the same length as a particular vector but in the opposite direction are called negative vectors. A negative sign will reverse the direction of a vector and make it a negative vector. Vectors are only negative with respect to another vector.

For example, if a vector PQ points from left to right, then the vector QP will point from right to left. Since these directions are opposite, we say that PQ = –QP. That is, QP is the negative vector for PQ, as depicted in the image below. It is important to note that the vector PQ and the vector QP have the same magnitude but opposite directions, making them the negative vectors of each other.

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