What are the Examples of null vector?

Answer 1

The null vector, also called the zero vector, is a vector a, such that a+b=b for any vector b.

Also, b+( -b)=a

An example in R3

is the vector <0,0,0>

Here are some examples of its use

<2,2,2>+<-2,-2,-2>=<0,0,0>

<2,2,2>+<0,0,0>=<2,2,2>