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If the distance between the points P(a ,...

If the distance between the points `P(a ,2,1)a n d\ Q(1,-1,1)` is 5 units find the value of `adot`

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RD SHARMA ENGLISH-INTRODUCTIONS TO 3-D COORDINATE GEOMETRY-All Questions
  1. Write the distance of the point P(2,3,5) from the xy-plane.

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  2. Write the distance of the point P(3,4,5) from z-axis.

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  3. If the distance between the points P(a ,2,1)a n d\ Q(1,-1,1) is 5 unit...

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  4. The coordinates of the mid points of sides AB, BC and CA of A B C are...

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  5. Write the coordinates of the foot of the perpendicular from the point ...

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  6. Write the length of the perpendicular drawn from the point P(3,5, 12) ...

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  7. Write the coordinates of third vertex of a triangle having centroid at...

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  8. What is the locus of a point (x , y , z) for which y=0, z=0?

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  9. Find the ratio in which the line segment joining the points (2,4,5) an...

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  10. Find the point on y-axis which is at a distance of sqrt(10) units from...

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  11. Find the point on x-axis which is equidistant from the points A(3,2,2)...

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  12. Find the coordinates of a point equidistant from the origin and pints ...

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  13. Write the coordinates of the point P which is five sixth of the way fr...

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  14. If a parallelepiped is formed by the planes drawn through the points ...

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  15. Determine the point on yz-plane which is equidistant from points A(2,0...

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  16. If the origin is the centroid of a triangle ABC having vertices A(a ,1...

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  17. The ratio in which the line joining (2,4,5) and (3,5,-9) is divided by...

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  18. The ratio in which the line joining the points (a , b , c) and (-a ,-...

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  19. If P(0,1,2),\ Q(4,-2,1)a n d\ O(0,0,0) are three points then angle P ...

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  20. If the extremities of the diagonal fo a square are (1,-2,3) and (2,...

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