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Byju's Answer
Standard XII
Mathematics
Equations with Solutions at Boundary Values
Find nature o...
Question
Find nature of solution for given system of equations
2
x
+
y
+
z
=
3
;
x
+
2
y
+
z
=
4
;
3
x
+
z
=
2
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Solution
⇒
D
=
⎛
⎜
⎝
2
1
1
1
2
1
3
0
1
⎞
⎟
⎠
⇒
D
=
2
(
2
)
−
1
(
1
−
3
)
+
1
(
−
6
)
⇒
D
=
4
+
2
−
6
=
0
⇒
D
1
=
⎛
⎜
⎝
3
1
1
4
2
1
2
0
1
⎞
⎟
⎠
⇒
D
1
=
3
(
2
)
−
1
(
4
−
2
)
+
1
(
−
4
)
⇒
D
1
=
6
−
2
−
4
=
0
⇒
D
2
=
⎛
⎜
⎝
2
1
1
1
2
1
3
0
1
⎞
⎟
⎠
⇒
D
2
=
=
2
(
2
)
−
3
(
1
−
3
)
+
1
(
2
+
2
)
⇒
4
+
6
−
10
=
0
⇒
D
=
D
1
=
D
2
=
0
hence system has infinite number of solution.
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