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Question
If 2x + y = 0 is one of the line represented by 3x2 + kxy + 2y2 = 0 then k = ______
Options
`1/2`
`11/2`
`2/3`
`3/2`
Solution
`11/2`
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Choose correct alternatives:
If the equation 4x2 + hxy + y2 = 0 represents two coincident lines, then h = _______
Auxillary equation of 2x2 + 3xy − 9y2 = 0 is ______
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Find the joint equation of pair of lines through the origin which is perpendicular to the lines represented by 5x2 + 2xy - 3y2 = 0
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`(x + 3)/3 = (y - 4)/5 = (z + 8)/6`
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