2. [4 marks]. Let A be a given n x n matrix, where n is a...
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2. [4 marks]. Let A be a given n x n matrix, where n is a positive integer. Let S be the set of all n x n matrices B having the property that AB = BA. Let us prove that S is a subspace. (a) [2 marks]. Show that S is closed under vector addition. That is, suppose the matrices B and Care elements of S. Show that B + C must also be an element of S. (b) [2 marks]. Show that S is closed under scalar multiplication. That is, suppose that B is an element of S. Show that oB must also be an element of S for all o € R. 2. [4 marks]. Let A be a given n x n matrix, where n is a positive integer. Let S be the set of all n x n matrices B having the property that AB = BA. Let us prove that S is a subspace. (a) [2 marks]. Show that S is closed under vector addition. That is, suppose the matrices B and Care elements of S. Show that B + C must also be an element of S. (b) [2 marks]. Show that S is closed under scalar multiplication. That is, suppose that B is an element of S. Show that oB must also be an element of S for all o € R.
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by 4 a where B CES So St B B C Bees 32 2 1 i i 2 Be S 1 bizi i b b22 32... View the full answer
Related Book For
Introduction to Algorithms
ISBN: 978-0262033848
3rd edition
Authors: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest
Posted Date:
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