for which the sys y +z = 6, 4x + Ay = -5 has infinitely m a root of which qu: %D :
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:If A is a real number for which the system of
linear equations x + y + z = 6, 4x + Ay – Az = -
2, and 3x + 2y - 4z = -5 has infinitely many
solutions, then A is a root of which quadratic
equation?
%D
%3D
1.
12 + 31 - 4 = 0
12 -1 - 6 = 0
3.
12 - 31 - 4 = 0
4.
12+1 - 6 = 0
2.
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