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CBSE XII
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Math
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Q)
Determine the product of
[
−
4
4
4
−
7
1
3
5
−
3
−
1
]
and
[
1
−
1
1
1
−
2
−
2
2
1
3
]
Use this product to solve the system of equations
x
−
y
+
z
=
4
,
x
−
2
y
−
2
z
=
9
and
2
x
+
y
+
3
z
=
1
3
,
−
2
,
−
1
3
,
2
,
0
1
,
0
,
1
1
,
2
,
1
Share
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