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Mathematics
Mathematics
Problem
Consider the system of linear equations represented in matrix form by
A
X
=
B
A X = B
A
X
=
B
, where
A
=
(
1
1
1
0
2
p
1
−
1
0
)
.
A=\begin{pmatrix} 1 & 1 & 1 \\ 0 & 2 & p \\ 1 & -1 & 0 \end{pmatrix}.
A
=
1
0
1
1
2
−
1
1
p
0
.
For which one of the following values of
p
p
p
will the system NOT have a unique solution? a)
0
0
0
b)
1
1
1
c)
−
1
-1
−
1
d)
2
2
2
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