Without using pencil and paper, determine which of the following homogeneous systems have nontrivial solutions. (a) 2xj = 3x2+ 4x3= x4-0 7x1+ x2-8x3 + 9x4=0 2x1 + 8x2 + x3- x4=0 (b) x1 + 3x2 - x3=0 x2= 8x3=0 4x3-0 (e) a}x1+a12#2+a1373 = 0 (d) 3x1 =2x2= 0 6x1 – 4x2=0

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter11: Systems Of Equations
Section11.5: Cramer's Rule
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- Without using pencil and paper, determine which of the following homogeneous systems have nontrivial solutions.
(a) 2x1 – 3x2+ 4x3 – x4=0
7x1+ x2-&r3 + 9x4=0
2x1 + 8x2+ x3- x4=0
(b) x1 + 3x2- 13= 0
x2- 8r3 =0
4x3=0
(c) a}x1+a]2#2+ a13*3=0
(d) 3x1– 2x2=0
6x1 - 4x2 =0
Transcribed Image Text:- Without using pencil and paper, determine which of the following homogeneous systems have nontrivial solutions. (a) 2x1 – 3x2+ 4x3 – x4=0 7x1+ x2-&r3 + 9x4=0 2x1 + 8x2+ x3- x4=0 (b) x1 + 3x2- 13= 0 x2- 8r3 =0 4x3=0 (c) a}x1+a]2#2+ a13*3=0 (d) 3x1– 2x2=0 6x1 - 4x2 =0
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