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If points `(a ,\ 0),\ (0,\ b)` and `(1,\ 1)` are collinear, then `1/a+1/b=` (a) 1 (b) 2 (c) 0 (d) `-1`

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RD SHARMA ENGLISH-COORDINATE GEOMETRY-All Questions
  1. If points (t ,\ 2t),\ (-2,\ 6) and (3,\ 1) are collinear, then t= (...

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  2. If the area of the triangle formed by the points (x ,\ 2x),\ (-2,\ 6...

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  3. If points (a ,\ 0),\ (0,\ b) and (1,\ 1) are collinear, then 1/a+1/...

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  4. If the centroid of a triangle is (1,\ 4) and two of its vertices...

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  5. The line segment joining points (-3,\ -4) , and (1,\ -2) is divided ...

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  6. The ratio in which (4,\ 5) divides the join of (2,\ 3) and (7,\ ...

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  7. The ratio in which the x-axis divides the segment joining (3,\ 6) an...

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  8. If the centroid of the triangle formed by the points (a ,\ b),\ (b ...

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  9. If points (1,\ 2),\ (-5,\ 6) and (a ,\ -2) are collinear, then a= (...

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  10. If the centroid of the triangle formed by (7,\ x),\ (y ,\ -6) and (9...

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  11. The distance of the point (4,\ 7) from the x-axis is (a) 4 (b) 7 (...

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  12. The distance of the point (4,\ 7) from the y-axis is 4 (b) 7 (c)...

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  13. If P is a point on x-axis such that its distance from the origin is ...

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  14. If the point P(x ,\ y) is equidistant from A(5,\ 1) and B(-1,\ 5) ...

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  15. If points A(5,\ p),\ \ B(1,\ 5),\ \ C(2,\ 1) and D(6,\ 2) form a sq...

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  16. The coordinates of the circumcentre of the triangle formed by the p...

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  17. The coordinates of a point on x-axis which lies on the perpendicula...

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  18. If the centroid of the triangle formed by the points (3,-5), (-7, 4), ...

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  19. If (-2,\ 1) is the centroid of the triangle having its vertices at ...

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  20. The coordinates of the fourth vertex of the rectangle formed by the ...

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