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Mathematics
Mathematics
Problem
Let
A
=
(
3
2
5
k
)
A = \begin{pmatrix} 3 & 2 \\ 5 & k \end{pmatrix}
A
=
(
3
5
2
k
)
. For which value of
k
k
k
does
A
A
A
NOT possess an inverse? a)
15
2
\dfrac{15}{2}
2
15
b)
−
10
3
-\dfrac{10}{3}
−
3
10
c)
10
3
\dfrac{10}{3}
3
10
d)
11
3
\dfrac{11}{3}
3
11
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