फाइंड द वैल्यू ऑफ केक फॉर व्हिच द सिस्टम ऑफ इक्वेशन टू एक्स प्लस टू बाय इज इक्वल टू फाइव थ्री एक्स प्लस फोर वाई इक्वल टू वन हस नो सॉल्यूशन
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MATHS
The value of k for which the system of equations kx−y=2,6x−2y=3 has a unique solution is _________.
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ANSWER
For a system of equations a
1
x+b
1
y+c
1
=0;a
2
x+b
2
y+c
2
=0 to have unique solution, the condition to be satisfied is
a
2
a
1
=
b
2
b
1
=
c
2
c
1
⇒
6
k
=
−2
−1
=
3
2
∴ For unique solution of system of equations, k
=3,4
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