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Byju's Answer
Standard XII
Mathematics
Derivative of One Function w.r.t Another
2 x-3 y-4 z=2...
Question
2x − 3y − 4z = 29
− 2x + 5y − z = − 15
3x − y + 5z = − 11
Open in App
Solution
Given: 2x − 3y − 4z = 29
− 2x + 5y − z = − 15
3x − y + 5z = − 11
D
=
2
-
3
-
4
-
2
5
-
1
3
-
1
5
=
2
(
25
-
1
)
+
3
(
-
10
+
3
)
-
4
(
2
-
15
)
=
2
(
24
)
+
3
(
-
7
)
-
4
(
-
13
)
=
79
D
1
=
29
-
3
-
4
-
15
5
-
1
-
11
-
1
5
=
29
(
25
-
1
)
+
3
(
-
75
-
11
)
-
4
(
15
+
55
)
=
29
(
24
)
+
3
(
-
86
)
-
4
(
70
)
=
158
D
2
=
2
29
-
4
-
2
-
15
-
1
3
-
11
5
=
2
(
-
75
-
11
)
-
29
(
-
10
+
3
)
-
4
(
22
+
45
)
=
2
(
-
86
)
-
29
(
-
7
)
-
4
(
67
)
=
-
237
D
3
=
2
-
3
29
-
2
5
-
15
3
-
1
-
11
=
2
(
-
55
-
15
)
+
3
(
22
+
45
)
+
29
(
2
-
15
)
=
2
(
-
70
)
+
3
(
67
)
+
29
(
-
13
)
=
-
316
Now
,
x
=
D
1
D
=
158
79
=
2
y
=
D
2
D
=
-
237
79
=
-
3
z
=
D
3
D
=
-
316
79
=
-
4
∴
x
=
2
,
y
=
-
3
and
z
=
-
4
Suggest Corrections
0
Similar questions
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2x − y + 2z = 0
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Q.
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11. 2x+y+z=13y_5z = 9
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