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The angle between the lines (x-1)/(2) = ...

The angle between the lines `(x-1)/(2) = (y+1)/(1) =(1-z)/2` and x = k + 1, y =2 k -1, z=2k +3, `k in R ` is .....

A

`pi/3`

B

`sec^(-1)""(9)/(4)`

C

`cosec^(-1)""(3/4)`

D

`pi/2`

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The correct Answer is:
D
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KUMAR PRAKASHAN-THREE DIMENSIONAL GEOMETRY-MULTIPLE CHOICE QUESTIONS (MCQs)
  1. The direction of the line of intersection of the planes 2x + 3y + z-1 ...

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  2. The pane x+2y -2z = 6 makes the intercepts with the axes, The centroid...

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  3. The angle between the lines (x-1)/(2) = (y+1)/(1) =(1-z)/2 and x = k +...

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  4. The plane passes through the point (1,-1,-1) and its normal is perpend...

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  5. The plane ax + by + cz = 1 intersects the axes in A, B and C respetive...

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  6. The plane makes the angles (pi)/(4),(pi)/(4) and (pi)/(2) with the pos...

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  7. The equation of the plane passing through the pionts (2,5,-3) and perp...

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  8. The equation of the plane passing through the pionts (0,-4,-6) and (-2...

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  9. The line joining the pionts (1,1,2) and (3,-2,1) meets the plane 3x + ...

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  10. The plane passing through (5,1,2) and perpendicular to the line 2(x-2)...

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  11. The intercepts on the axes cut off by the plane which is perpendicular...

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  12. The equation of the plane passing through the intersection of the plan...

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  13. If from the point (a,b,c) perpendiculars PL and PM be drawn to YOZ and...

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  14. The line (x+1)/(2) = (y+1)/(3) = (z+1)/(4) meets the plane x + 2y + 3z...

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  15. The plane containing the two lines (x-3)/(1) = (y-2)/(4) = (z-1)/(5) a...

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  16. A variable plane passes through a fixed point (1,-2,3) and meets the c...

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  17. The equation to the plane through the pionts (2,-1,00) and (3,-4,5) pa...

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  18. Through a point P(f,g,h) a plane is drawn at right angles to bar(OP), ...

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  19. If p1,P2,P3 denot the distances of the plane 2x-3y+4z +2 = 0 from the ...

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  20. The image of the piont P(2,3,1) in the plane x-y-z -2 = 0 is ............

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