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The shortest distance of the point (a,b,...

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

A

`sqrt(a^2+b^2)`

B

`sqrt(b^2+c^2)`

C

a

D

`sqrt(a^2+c^2)`

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MODERN PUBLICATION-Three Dimensional Geometry-EXERCISE
  1. Find the coordinates of the Foot of the perpendicular drawn from the ...

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  2. The distance between the x axis and the point (3,12,5) is :

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

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  4. Equation of the plane perpendicular to the line x/1=y/2=z/3 and passin...

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  5. The line (x-2)/3=(y-3)/4=(z-4)/5 is parallel to the plane:

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  6. Prove that the angle between any two diagonals of a cube is cos^-1frac...

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  7. The line passing through the points (5, 1, a) and (3, b, 1) crosses th...

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  8. If the straight lines : (x-1)/k=(y-2)/2=(z-3)/3 and (x-2)/3=(y-3)/k=(z...

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  9. Let P(3, 2, 6) be a point in space and Q be a point on the line r=(ha...

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  10. A line with positive direction cosines passes through the pint P(2,-1,...

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  11. Let the line (x-2)/(3)=(y-1)/(-5)=(z+2)/(2) lies in the plane x+3y-alp...

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  12. The projection of a vector on the three coordinate axes are 6, -3, 2, ...

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  13. A line AB in three-dimensional space makes angles 45^(@) and 120^(@) w...

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  14. Equation of the plane containing the straight line x/2=y/3=z/4 and per...

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  15. If the distance of the point P(1,-2,1) from the plane x+2y-2z=alpha, w...

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  16. If the angle between the line x=(y-1)/(2)=(z-3)(lambda) and the plane ...

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  17. The length of the perpendicular drawn from the point (3, -1, 11) to th...

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  18. The distance of the point (1,-5, 9) fromthe plane x-y+z=5, measured al...

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  19. If the line (x-1)/(2)=(y+1)/(3)=(z-1)/(4) and (x-3)/(1)=(y-k)/(2)=(z)/...

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  20. An equation of a plane parallel to the plane x-2y+2z-5=0 and at a unit...

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