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Byju's Answer
Standard XII
Mathematics
Cramer's Rule
Find the valu...
Question
Find the values of
k
so that the pair of linear equations
k
x
−
2
y
=
3
and
3
x
+
y
=
5
has a unique solution.
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Solution
k
x
−
2
y
=
3.....
(
1
)
3
x
+
y
=
5.......
(
2
)
For unique solution
⇒
∣
∣
∣
k
−
2
3
1
∣
∣
∣
≠
0
⇒
k
+
6
≠
0
⇒
k
≠
−
6
Hence, this is the answer.
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