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Prove that the following lines are concu...

Prove that the following lines are concurrent also find the point of concurrency.
`3x-4y+5=0 " ...(1)"`
`7x-8y+5=0 " ...(2)"`
`" "4x+5y=45 " ...(3)"`

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SUBHASH PUBLICATION-STRAIGHT LINES-TWO MARKS QUESTIONS WITH ANSWERS
  1. Find the equation of the median through vertex A of DeltaABC if A=(1...

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  2. Find k if the following lines are parallel 3x-4y+1=0 " ...(i)...

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  3. Find k if the following lines are perpendicular (k+2)x+(2k+1)y=7 " a...

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  4. Find the equation of line passing through (4, 2) and parallel to the l...

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  5. Find the equation of the line passing through (4, 5) perpendicular to ...

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  6. Find the equation of the passing through (2, 3) and cutting off equal ...

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  7. Find the equation of the line such that the portion of the line interc...

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  8. Find the acute angle between :- 5x+6y-1=0, " "x-11y+8=0

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  9. Findt the point of intersection of following lines :- x-2y+3=0 " ...

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  10. Prove that the following lines are concurrent also find the point of c...

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  11. Find k so that the following lines are concurrent 3x+y=2 " ...

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  12. Find the orthocentre of the triangle whose vertices are given by (5,-2...

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  13. Prove that the points (2, -5) & (-2, 4) lie on the same side of the li...

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  14. Prove that the points (2, -3) & (-3, 7) lie on the opposite sides of t...

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  15. Find the length of the botr drawn from the point (2, 3) on the line 3x...

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  16. Prove that the points (2, -5) & (-1, 4) are equidistant from the line ...

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  17. Find the distance between the following parallel lines 3x+4y+2=0" "(...

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