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Byju's Answer
Standard XII
Mathematics
Law of Reciprocal
Determine whe...
Question
Determine whether the following lines are consistent or inconsistent:
2
x
+
y
−
6
=
0
,
4
x
−
2
y
−
4
=
0
A
The graph is coincident straight line.
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B
The graph is intersecting lines
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C
Inconsistent
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D
None of these
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Solution
The correct option is
B
The graph is intersecting lines
Comparing
2
x
+
y
−
6
=
0
with
a
1
x
+
b
1
y
+
c
1
=
0
, we get,
a
1
=
2
,
b
1
=
1
,
c
1
=
−
6
and
4
x
−
2
y
−
4
=
0
with
a
2
x
+
b
2
y
+
c
2
=
0
, we get
a
2
=
4
,
b
2
=
−
2
,
c
2
=
−
4
Now
a
1
a
2
=
2
4
=
1
2
b
1
b
2
=
1
−
2
Here,
a
1
a
2
≠
b
1
b
2
∴
The equations are consistent and have exactly one solution. i.e the graph are intersecting lines.
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1
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