- #1

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## Homework Statement

## Homework Equations

addition / multiplication -- showing that the vectors (in this case) aren't closed under addition and scalar multiplication. . .

## The Attempt at a Solution

I really get stuck with proofs: how to begin / where to go / etc.

I know that I am supposed to show that this isn't a vector space by it not being closed under addition and/or scalar multiplication -- but I don't know how to do that.

The examples in the book are of polynomials -- so they take

**u**= a

_{2}x

^{2}+ a

_{1}x + a

_{0}and add it to

**v**= b

_{2}x

^{2}+ b

_{1}x + b

_{0}then separate like terms, and show that it is closed under addition. I don't know how to do something like this here.

Also, I don't know if the scalar multiplication (for part a) is a typo or not). . .