Finite Mathematics Quiz
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MATRICES AND LINEAR ALGEBRA TOOLS
Question 1
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For what value of
x
x
x
are the determinants of matrix
A
=
(
x
4
1
3
)
A = \begin{pmatrix} x & 4 \\ 1 & 3 \end{pmatrix}
A
=
(
x
1
4
3
)
and matrix
B
=
(
2
−
1
x
5
)
B = \begin{pmatrix} 2 & -1 \\ x & 5 \end{pmatrix}
B
=
(
2
x
−
1
5
)
equal?
A
1.5
1.5
1.5
B
3
3
3
C
3.5
3.5
3.5
D
7
7
7
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