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A square matrix A satisfies AT= -A. Show that a) (5 points) I- A is always invertible. (2 points for demonstration by an example)
A square matrix A satisfies AT= -A. Show that a) (5 points) I- A is always invertible. (2 points for demonstration by an example) (b) (5 points) Q = (IA)-(I + A) is an orthogonal matrix. (2 points for demonstration by an example)
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Differential Equations and Linear Algebra
Authors: Jerry Farlow, James E. Hall, Jean Marie McDill, Beverly H. West
2nd edition
131860615, 978-0131860612
