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If the points (am^(2),2am),(an^(2),2an)a...

If the points `(am^(2),2am),(an^(2),2an)and(a,0)` are collinaear then value of mn is -

A

1

B

`-2`

C

-1

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
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CHHAYA PUBLICATION-REVISION OF PREVIOUS TWO DIMENSIONAL COORDINATE GEOMETRY -EXERCISE 1 (MCQ)
  1. The point P lies on 3rd quadrant and its distances from x- axis and y...

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  2. When the origin is shifted (retaining the direction of the axis) at th...

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  3. AB is a diameter of a circle having centre at C , if the coordinates o...

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  4. The centroid of the triangle formed by the points (1,2),(2,4)and (-3,6...

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  5. (a , 2b ) divides the line segment joining by the points (3a,0),(0,3b)...

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  6. A point moves in the xy -plan such that three times its distance from...

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  7. State in which of the following quadrants the point (sqrt(5)-3,sqrt(5...

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  8. The coordinates of a point referred to rectangular axis overset(harr)(...

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  9. If the points (am^(2),2am),(an^(2),2an)and(a,0) are collinaear then v...

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  10. State which of the follwing is the distance between the points (a+b,c-...

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  11. Which of the following is equal to the distance between the points (-1...

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  12. the ditance between the points (x,-7) and (3,-3) is 5 unit , state whi...

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  13. State which of the follwing are the coordinates of the mid - point of ...

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  14. The point P divides the line -segmen joining the points A (1,5) and B(...

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  15. A point divides the line -segment joining the points (2,-5) and (-3,-2...

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  16. State which of the following are the coordinates of the centroid of th...

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  17. State which of the following is equal to the area of the traingle form...

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  18. E is the mid - point of the diagonal AC of the rectangle ABCD , if the...

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  19. State which of the following is equal to the area of the triangle form...

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  20. A point moves in the xy - plane in such a manner that its distance fro...

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