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A (3,2,0) , B (5,3,2)C (-9,6,-3) are thr...

`A (3,2,0) , B (5,3,2)C (-9,6,-3)` are three points forming a triangle. AD, the bisector of angle BAC meets BC in D. Find the coordinates of the point D.

A

`(19//8,57//16,17//16)`

B

`(-19//8,57//16,17//16)`

C

`(19//8,-57//16,17//16)`

D

none of these

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OBJECTIVE RD SHARMA ENGLISH-THREE DIMENSIONAL COORDINATE SYSTEM -Exercise
  1. If the x-coordinate of a point P on the join of Q(2,2,1)a n dR(5,1,-...

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  2. The distance of the point P(a,b,c) from the x-axis is

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  3. Ratio in which the xy-plane divides the join of (1, 2, 3) and (4, 2...

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  4. If P (3,2,−4) , Q (5,4,−6) and R (9,8,−10)  are collinear, then  ...

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  5. A (3,2,0) , B (5,3,2)C (-9,6,-3) are three points forming a triangle. ...

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  6. A line passes through the points (6,-7,-1)a n d(2,-3,1)dot Find te ...

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  7. If a line makes angles alpha,beta,gamma with the positive direction of...

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  8. If P is a point in space such that OP=12 and vec(OP) is inclied at ang...

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  9. A vector vec O P is inclined to O X at 45^0 and O Y at 60^0 . Find th...

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  10. vector is equal inclined with the coordinate axes. If the tip ofvecr ...

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  11. If vecr is a vector of magnitude 21 and has direction ratios 2, -3 an...

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  12. The direction cosines of the lines bisecting the angle between the lin...

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  13. Find the coordinates of the foot of the perpendicular drawn from po...

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  14. The projections of a line segment on the coordinate axes are 12,4,3 re...

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  15. If P(x,y,z) is a point on the line segment joining Q(2,2,4) and R(3,5,...

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  16. If O is the origin, OP = 3, with direction ratios -1, 2 and -2, then f...

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  17. A mirror and a source of light are situated at the origin O and at a p...

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  18. Find the angle between any two diagonals of a cube.

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  19. A line makes angles angle, beta, gamma and delta with the diagonals of...

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

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