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Show that the lines lx + my + n = 0 , mx...

Show that the lines lx + my + n = 0 , mx + ny + l = 0 and nx + ly + m = 0 are concurrent, if l + m + n = 0.

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MBD PUBLICATION-STRAIGHT LINES-QUESTION BANK
  1. A triangle has its vertices at P(1,-1),Q(3,4) and R(2,5). Find the equ...

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  2. Show that the line passing through (6,0) and (-2,-4) is concurrent wi...

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  3. Show that the lines lx + my + n = 0 , mx + ny + l = 0 and nx + ly + m ...

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  4. Obtain the equation of the bisector of the acute angle between the pai...

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  5. Obtain the equation of the bisector of the acute angle between the pai...

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  6. Find the area of the region bounded by the line y = 3x + 2, x-axis and...

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  7. Find the coordinate of the circumcentre and incentre of the triangle f...

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  8. Find the equation of the lines represented by the following equation 4...

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  9. Find the equation of the lines represented by the following equation 2...

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  10. Find the equation of the lines represented by the following equation x...

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  11. Find the equation of the lines represented by the following equation 3...

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  12. From the equations which represents the following Pair of lines. , y...

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  13. From the equations which represents the following Pair of lines y -...

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  14. From the equations which represents the following Pair of lines 2x ...

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  15. From the equations which represents the following Pair of lines x =...

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  16. Which of the following equations represent pair of lines ? 2x^2 - 6...

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  17. Which of the following equations represent pair of lines ? 10x^2 - ...

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  18. Which of the following equations represent pair of lines ? xy + x +...

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  19. For what value of lamda do the following equations represent pair of s...

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  20. For what value of lamda do the following equations represent pair of s...

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