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Mathematics
Mathematics
Problem
Let
A
=
[
1
x
0
2
]
A = \begin{bmatrix} 1 & x \\ 0 & 2 \end{bmatrix}
A
=
[
1
0
x
2
]
and
B
=
[
2
1
y
3
]
B = \begin{bmatrix} 2 & 1 \\ y & 3 \end{bmatrix}
B
=
[
2
y
1
3
]
. If
A
B
=
[
8
10
4
6
]
AB = \begin{bmatrix} 8 & 10 \\ 4 & 6 \end{bmatrix}
A
B
=
[
8
4
10
6
]
, find the pair
(
x
,
y
)
(x,\,y)
(
x
,
y
)
. a)
(
2
,
3
)
(2,3)
(
2
,
3
)
b)
(
9
,
2
3
)
\left(9,\dfrac{2}{3}\right)
(
9
,
3
2
)
c)
(
3
,
2
)
(3,2)
(
3
,
2
)
d)
(
3
,
3
)
(3,3)
(
3
,
3
)
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