In this page, vector additive identity is explained.

*click on the content to continue..*

What does 'identical' mean?

- same; similar; alike
- same; similar; alike
- different; mismatch

The answer is 'same; similar; alike'

Consider the vector `vec 0 = 0i+0j+0k`. What will be the result of adding that with another vector `vec a`?

- `-vec a`
- `|vec a|`
- `0i+0j+0k`
- same as `vec a`
- same as `vec a`

The answer is 'same as `vec a`'. The sum is *identical* to the vector being added.

The vector `vec 0 = 0i+0j+0k` is also known as .....

• null or zero vector - Additive Identity.

**Additive Identity: ** For any vector `vec a in bbb V` there exists a `vec 0 in bbb V` such that

`vec a+vec 0=vec a`

*Solved Exercise Problem: *

Consider `vec p = 220i+310j-12i+15j`. What will be the sum `vec p + vec 0`?

- `vec p`
- `vec p`
- `503ij`
- `232i+325j`
- `-208i-325j`

The answer is '`vec p`'

*slide-show version coming soon*