Vector spaces

I wonder could anyone get me started on this?

U is the solution set to a system of linear equations Ax=0 where

A= 3 4 61
112 -1 34
109 -5 -27

Is the subset U of a vector space V a subspace of V?

Thanks a lot

Hello,

Quote:

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Originally Posted by Bell2009

Is the subset U of a vector space V a subspace of V?

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Yes it is. Can you prove it ?

It is a homogeneous system, so you should try to solve it. Could you start?

ive just figured it out myself (i think), thanks