- #1

frasifrasi

- 276

- 0

Let a be the vector (-1,2) in

**R**^2. Is the set S = { x is in

**R**^2 | x dot a = 0}

a subspace?

--> x and a are vectors...

Can anyone explain how to show this?

I was thinking that since the zero vector is in R^2, this must also be a subspace.

Thank you.