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Select from the following statements those that are true and leave unselected those that are false. Suppose v and w are any pair of linearly independent vectors in R" and U = span{ v. w). Let b be a vector in R". Then projub = b .v bow 1/ w /12 " Let W be a subspace of R" and let v be any vector in R". Then v -proj wv is in WI. Let A be a matrix and let U = row(A) be the row space of A. Then U & # null (A). 0 O Let p be the orthogonal projection of v in R" into a subspace U of R". Then p is the closest vector to v that lies in U Any matrix with orthogonal columns is called an orthogonal matrix