This preview shows page 1. Sign up to view the full content.
Unformatted text preview: ± 11 / 2  1 1 1  1 ² , 2a) Underdetermined; inﬁnite solution set, since it is consistent with a free variable. 2b) Underdetermined; no solutions, since it says 0 = 1. 2c) Square; it has one solution (an obvious one), since it is in triangular form. 3) FFFFT; but I gave credit for either answer on the ﬁrst statement. Bonus: The usual method to show something exists, is to give an example. Try to ﬁnd one that is as simple and clear as possible. One good answer is to write out x 1 + x 2 = 1 three times (and explain brieﬂy that it is consistent and overdetermined). I also gave credit for saying that any homogeneous overdetermined system must be consistent. But can an overdetermined system be homogeneous ? Of course it can, but giving a speciﬁc example would be slightly clearer. 1...
View
Full
Document
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
 JULIANEDWARDS

Click to edit the document details