Part 2 of the Fundamental Theorm of Algebra says that null space of matrix A is orthogonal to row space of A and left null space is orthogonal to column space.

How can one prove this?

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- Oct 29th 2009, 04:54 PMAvi06Proof for Part 2 of the fundamental theorm
Part 2 of the Fundamental Theorm of Algebra says that null space of matrix A is orthogonal to row space of A and left null space is orthogonal to column space.

How can one prove this? - Oct 29th 2009, 09:46 PMtonio
- Oct 30th 2009, 06:18 AMHallsofIvy
Perhaps this is the "fundamental theorem of

**linear**algebra"!