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Find the points on z-is which are t a di...

Find the points on z-is which are t a distance `sqrt(21)` from the point (1,2,3).

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RD SHARMA ENGLISH-INTRODUCTIONS TO 3-D COORDINATE GEOMETRY-All Questions
  1. Using distance formula prove that the following points are collinear: ...

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  2. Determine the points in i. xy-plane which re equidistant from the po...

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  3. Find the points on z-is which are t a distance sqrt(21) from the point...

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  4. Show that the points (0,7,10), (-1,6,6) and(-4,9,6) are the vertices o...

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  5. Show that the points A(3,3,3,),\ B(0,6,3),\ C(1,7,7)a n d\ D(4,4,7) ar...

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  6. Prove that the point A(1,3,0),\ B(-5,5,2),\ C(-9,-1,2)\ a n d\ D(-3,-3...

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  7. Show that the points A(1,3,4),\ B(-1,6, 10),\ C(-7,4,7)a n d\ D(-5,1,1...

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  8. Prove that the tetrahedron with vertices at the points O(0,0,0),\ A(0,...

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  9. Show that the points (3,2,2), (-1,4,2), (0,5,6), (2,1,2) lie on a s...

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  10. Find the coordinates of the point which is equidistant from the four ...

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  11. Find the locus of P\ if\ P A^2+P B^2=2k^2w h e r e\ A\ a n d\ B are po...

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  12. Are the points A(3,6,9),\ B(10 , 20 , 30)a n d\ C(25 ,-41 ,5), the ver...

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  13. Verify the following: (0,7,-10), (1,6,-6) and (4,9,-6) are vertices of...

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  14. Find out whether the points (0, 7, 10), (-1,6,6) and (-4,9,6) are the ...

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  15. Verify the following: (-1,2,1), (1,-2,5), (4,-7,8) and (2,-3,4) are ...

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  16. Verify the following: (5,-1,1),(7,-4,7), (1,-6,10) and (-1,-3,4) are ...

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  17. Find the locus of the points which are equidistant from the points ...

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  18. Find the locus of the point, the sum of whose distances from the point...

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  19. Show that the points A(1,2,3),\ B(-1,-2,-1),\ C(2,3,2)a n d\ D(4,7,6) ...

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  20. Find the equation of the set of the points P such that is distances fr...

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