The following system of equationsx1 + x2 + 2x3 = 1x1 + 2x2 + 3x3 = 2x1 – McqOptions

MCQOPTIONS

1.	The following system of equationsx1 + x2 + 2x3 = 1x1 + 2x2 + 3x3 = 2x1 + 4x2 + ax3 = 4has a unique solution. The only possible value(s) for a is/are
A.	0
B.	either 0 or 1
C.	one of 0, 1 or -1
D.	any real number other than 5.
Answer» E.

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