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Unformatted text preview: e) An undetermined homogeneous system must have at least two solutions. Remarks and Answers: This was not supposed to be very hard, and the average [based on the top 14 out of 18 grades] was high; 51/60, or 85%. The unocial scale is As = 55-60 Bs = 49-54 Cs = 43-48 Ds = 37-42 Fs = 0-36 1) Start by swapping the rows (a Type I op): A = 1 0-1 / 3 | 4 / 3 0 1 1 | 2) A) Over; inconsistent ( x 2 = 1 = 2 is not possible); B) Under; innitely-many solns (consistent with free variables); C) Square, a unique solution, (5,4). 3) FFTFT. I usually go over the TF in class after each quiz. You are welcome to ask more about these though. 1...
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This note was uploaded on 12/26/2011 for the course MAS 3105 taught by Professor Julianedwards during the Spring '09 term at FIU.
- Spring '09