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प्रश्न
The value of k for which the equations 3x – y + 8 = 0 and 6x – ky + 16 = 0 represent coincident lines is ______.
पर्याय
`1/2`
`-1/2`
2
– 2
MCQ
रिकाम्या जागा भरा
उत्तर
The value of k for which the equations 3x – y + 8 = 0 and 6x – ky + 16 = 0 represent coincident lines is 2.
Explanation:
We know that,
For coincident lines,
`\implies 3/6 = (-1)/(-k) = 8/16`
`\implies 1/2 = 1/k`
`\implies` k = 2
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