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Determine whether the given points are c...

Determine whether the given points are collinear.(ii) P(1,2),Q(2,8/5),R(3,6/5).

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The correct Answer is:
`therefore` Points P ,Q and R are collinear.
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TARGET PUBLICATION-CO-ORDINATE GEOMETRY-PROBLEM SET -5
  1. A line makes an angle of 30^@ with the positive direction of X-axis.so...

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  2. Determine whether the given points are collinear.(i) A(0,2),B(1,-0.5),...

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  3. Determine whether the given points are collinear.(ii) P(1,2),Q(2,8/5),...

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  4. Determine whether the given points are collinear.(iii) L(1,2),M(5,3),N...

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  5. Find the coordinates of the midpoint of the line segment joining P(0,6...

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  6. Find the ratio in which the line segment joining the points A(3,8) and...

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  7. Find a point on X-axis which is equidisant from P(2,-5) and Q(-2,9).

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  8. Find the distance between the following pairs of points (i)A(a,0),B(0,...

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  9. Find the distance between the following pairs of points (iii)R(-3a,a),...

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  10. Find the coordinates of circumcentre of a triangle whose vertices are ...

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  11. In the following example, can the segment joining the given points for...

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  12. In the following examples,can the segment joining the given points for...

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  13. In the following examples , can the segment joining the given points f...

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  14. Find k, if the line passing through points P(-12,-3) and Q(4,k) has sl...

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  15. Show that the line joining the points A(4,8) and B(5,5) is parallel to...

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  16. Show that the points P(1,-2), Q(5,2), R(3,-1), S(-1,-5) are the vertic...

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  17. Show that the points P(2,1), Q(-1,3) , R (-5,-3) and S (-2,-5) are...

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  18. Find the lengths of the medians of a triangle whose vertices are A(-1,...

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  19. Show that A(4,-1), B(6,0), C(7,-2) and D(5,-3) are vertices of a squar...

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  20. Find the co-ordinates of circumcentre and radius of a circumcircle of ...

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