Hey everyone.

So linear algebra... I don't know what you're talking about.

All this subject is very vague for me, we got some boxes of matrices and we are required to do with it some operations as robots without any understanding, so I have lost...

We have already reached to subspaces, span, etc...

So for example I have some subsets to determine whether are subspaces or not.

I have the set of functions from Reals to Reals (f: -> R -> R) such that f(0)*f(1)=0

Now, I don't understand how to determine of this set is empty.

And actually I think we can't deal with this definition of the function as I can't divide by f(0) or f(1), it can be equal to 0 maybe.

Thanks.