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 November 12th, 2009, 05:51 PM #1 Newbie   Joined: Oct 2009 Posts: 6 Thanks: 0 Finding a matrix, confused at how to get started Let V be a subspace of R^6 given by the equations x1=x3+x4, x2=x4+x5, x3=x5+x6. a) Find a matrix B such that V=Nul(B) b) FInd a matrix A such that V=Col(A) and Nul(A)=0. What can one say about the set of columns af A? Calculate the product BA, where B is the matrix of part (a). c) Find the standard matrix for the orthogonal projection P:R^6 --> R^6 onto V. Thank you! November 12th, 2009, 11:34 PM #2 Senior Member   Joined: Apr 2008 Posts: 435 Thanks: 0 Re: Finding a matrix, confused at how to get started I would start by finding a basis for your subspace, orthogonal would perhaps be best. Tags confused, finding, matrix, started Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post mathmaniac Academic Guidance 11 February 13th, 2013 05:46 PM fin0c Advanced Statistics 2 February 28th, 2011 10:25 PM Bryson Algebra 4 June 14th, 2009 09:40 AM fred555 Calculus 1 February 27th, 2009 07:18 AM mathmaniac Calculus 0 December 31st, 1969 04:00 PM

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