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Byju's Answer
Standard XII
Mathematics
Addition and Subtraction of a Matrix
Given 3[ x ...
Question
Given
3
[
x
y
z
w
]
=
[
x
6
−
1
2
w
]
+
[
4
x
+
y
z
+
w
3
]
, find the values of
x
,
y
,
z
and
w
.
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Solution
Given
3
[
x
y
z
w
]
=
[
x
6
−
1
2
w
]
+
[
4
x
+
y
z
+
w
3
]
[
3
x
3
y
3
z
3
w
]
=
[
4
+
x
6
+
x
+
y
−
1
+
z
+
w
2
w
+
3
]
Comparing terms, we get
3
x
=
4
+
x
2
x
=
4
x
=
2
3
y
=
6
+
x
+
y
3
y
=
6
+
2
+
y
2
y
=
8
y
=
4
3
w
=
2
w
+
3
w
=
3
3
z
=
−
1
+
z
+
w
3
z
=
−
1
+
3
+
z
2
z
=
2
z
=
1
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