Prove that for a px q matrix B, the column space of B is a subspace of RP. (This needs to be a formal proof.)
Prove that for a px q matrix B, the column space of B is a subspace of RP. (This needs to be a formal proof.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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The column space (also called the range or image) of a matrix B is the span (set of all possible linear combinations) of its column vectors. The column space of a matrix is the image or range of the corresponding matrix transformation.
B is a p×q matrix. B can be considered as a linear transformation from R^q to R^p.
i.e. it takes the vectors of R^q to the vectors of R^p. So, column space of B is a subset of R^p.
Let b1, b2 is in Col(B) and c1, c2 be scalars. We have to show, c1.b1+c2.b2 is in Col(B).
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