Let A be a positive definite symmetric matrix. Show that there exists an invertible
Chapter 5, Problem 5.5.52(choose chapter or problem)
Let A be a positive definite symmetric matrix. Show that there exists an invertible matrix B such that A BT B. [Hint: Use the Spectral Theorem to write A QDQT . Then show that D can be factored as CT C for some invertible matrix C.]
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