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Write the direction of cosines of the li...

Write the direction of cosines of the line joining the poidnts (1,0,0) and (0,0,1).

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PRADEEP PUBLICATION-THREE DIMENSIONAL GEOMETRY-EXERCISE
  1. If the line drawn from the point (-2,-1,-3) meets a plane at right ang...

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  2. Write the distance of the plane 2x-y+2z+1=0 from the origin.

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  3. Write the direction of cosines of the line joining the poidnts (1,0,0)...

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  4. Write the vector equations of the plane throught the point (a,b,c) and...

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  5. If the cartesian equations of a line are : (3-x)/5=(y+4)/7=(2z-6)/4, w...

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  6. Distance of the point (2,5,-3) from the plane vec r.(6hat i-3 hat j+2 ...

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  7. Write down the direction cosines of the line whose equations are 5x-3=...

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  8. Write the sum of intercepts cut off by the plane vecr*(2hati+hatj-hatk...

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  9. If a line angles 90^@, 135^@, 45^@ with the positive x,y and z axis re...

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  10. Find the direction cosines of a line which makes equal angles with the...

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  11. If a line has the direction ratios –18, 12, – 4, then what are its dir...

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  12. Show that the points (2, 3, 4), (– 1, – 2, 1), (5, 8, 7) are collinear...

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  13. Find the direction cosines of the sides of the triangle whose vertices...

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  14. show that the three lines with direction cosines <12/13,-3/13,-4/13>, ...

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  15. Show that the line through the points (1, – 1, 2), (3, 4, – 2) is perp...

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  16. Show that the line through the points (4,7,8) and (2,3,4) is parallel ...

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  17. Find the equation of the line which passes through the point (1, 2, 3)...

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  18. Find the equation of the line in vector and in cartesian form that pas...

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  19. Find the cartesian equation of the line which passes through the point...

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  20. The cartesian equation of a line is (x-5)/3 = (y+4)/7 = (z-6)/2. Write...

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