Linear Algebra HW 1 Q3.docx

# Linear Algebra HW 1 Q3.docx - 3 Let A= A b A A = T = T b...

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3) Let A = [ 1 2 1 2 1 1 ] a) Find A T A b) Find A A T a) A T = [ 1 2 2 1 1 1 ] , so A T A = [ 1 2 2 1 1 1 ] [ 1 2 1 2 1 1 ] = [ 5 0 3 0 5 1 1 3 0 ] b) A A T = [ 1 2
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