Recent content by aanabtawi

It is, sorry for not making that clear!

I'm trying to prove that the null space of A'A is the null space of A, this is what I have so far, 1) A'Ax=0, non trivial solutions are a basis for the null space of A'A 2) x'A'Ax=0 3) (Ax)'Ax=0 4) Since (Ax)'A is a linear combination of the col's of A, we see that the null space of...

Homework Statement Prove that: ∇×(a∙∇a) = a∙∇(∇×a) + (∇∙a)(∇×a) - (∇×a)∙∇a Homework Equations Related to the vorticity transport equation. The Attempt at a Solution Brand new to index/tensor notation, any suggestions on where to begin? For example, I am having trouble...