Class 11MathematicsPair of straight linesBisectors of the angle between the lines, Point of intersection of the lines
MediumIf the pair of straight lines $xy-x-y+1=0$ and the line $ax+2y-3a=0$ are concurrent,then $a$ is equal to
- A$0$
- B$1$
- C$-1$
- D$3$
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Similar Questions
The joint equation of the pair of lines passing through the point of intersection of the lines represented by $2x^{2}-xy-15y^{2}-7x+32y-9=0$ and parallel to the coordinate axes is:
The equation of the bisectors of the angle between the lines represented by the equation $4x^2 - 16xy - 7y^2 = 0$ is
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View SolutionSuppose the pairs of straight lines $x^2 - 2axy - y^2 = 0$ and $x^2 - 2bxy - y^2 = 0$ are such that each pair bisects the angles between the other. Then $ab =$
The combined equation of the bisectors of the angle between the lines represented by $({x^2} + {y^2})\sqrt{3} = 4xy$ is
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View SolutionThe area of the triangle formed by the line $x+y=4$ and the angle bisectors of the pair of lines $x^2-y^2+2y-1=0$ is ......... sq. units.
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