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Home » Courses » Mathematics » Linear Algebra » Unit I: Ax = b and the Four Subspaces » Column Space and Nullspace
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The column space of a matrix A tells us when the equation Ax = b will have a solution x. The null space of A tells us which values of x solve the equation Ax = 0.
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Column Space and Nullspace
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Vector Subspaces
Work the problems on your own and check your answers when you're done.