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For what value of k are the points `(k ,2-2k)(-k+1,2k)a n d(-4-k ,6-2k)` are collinear?

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RD SHARMA ENGLISH-COORDINATE GEOMETRY-All Questions
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  2. If D ,Ea n dF are the mid-points of sides BC, CA and AB respectively o...

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  3. For what value of k are the points (k ,2-2k)(-k+1,2k)a n d(-4-k ,6-2k)...

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  4. If the points P ,Q(x ,7),R ,S(6, y) in this order divide the line segm...

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  5. If A(2,2),B(-4,-4)a n dC(5,-8) are the vertices of a triangle, then th...

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  6. The midpoint P of the line segment joining the points A(-10, 4) and B(...

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  7. If R(x , y) is a point on the line segment joining the points P(a , b)...

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  8. If the points A(-1,-4),B(b , c)a n dC(5,-1) are collinear and 2b+c=4,...

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  9. The perimeter of a triangle with vertices (0,4), (0,0) and (3,0) is

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  10. A point P divides the line segment joining the points A(3,-5)a n dB(-4...

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  11. If G be the centroid of a triangle ABC, prove that, AB^2 + BC^2 + CA...

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  12. If A(-3,5),B(-2,-7),C(1,-8)a n dD(6,3) are the vertices of a quadrilat...

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  13. The line segment joining the points P(3,3)a n dQ(6,-6) is trisected at...

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  14. If the area of A B C formed by A(x , y),B(1,2)a n dC(2,1) is 6 squae ...

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  15. Show that the points (a , a),(-a ,-a) and (-sqrt(3)a ,sqrt(3)a) are th...

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  16. The x-coordinate of a point P is twice its y-coordinate. If P is eq...

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  17. If A(4,-6),B(3,-2) a n d C(5,2) are the vertices of A B C, and AD is...

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  18. Three vertices of a parallelogram ABCD are A(3,-4),B(-1,-3)a n dC(-6,2...

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  19. Two uniform spheres A (Hollow) and B (solid) of same radius R (<r/2) a...

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  20. Let ABCD be a square of side 2a. Find the coordinates of the vertices ...

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