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if a line has direction ratio 2,-1,-2,de...

if a line has direction ratio 2,-1,-2,determine its direction cosine

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RD SHARMA ENGLISH-DIRECTION COSINES AND DIRECTION RATIOS-All Questions
  1. The angel between the two diagonals of a cube is a. 30^0 b. 45^0 c. ...

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  2. If a line makes angle 90o, 60oand 30owith the positive direction of ...

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  3. if a line has direction ratio 2,-1,-2,determine its direction cosine

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  4. Find the direction cosines of the line passing through two points

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  5. Using direction ratios show that the points A(2,3,-4), B(1,-2,3) an...

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  6. Find the direction cosines of the sides of the triangle whose vertic...

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  7. Find the angel between the vectors with direction ratios proportion...

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  8. Find the acute angle between the lines whose direction ratios are p...

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

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

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  11. Show that the line joining the origin to the point (2,1,1) is perpe...

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  12. Find the angle between the lines whose direction ratios are proport...

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  13. If the coordinates of the points A ,\ B ,\ C ,\ D\ b e\ (1,\ 2,\ 3),\ ...

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  14. Find the direction cosines of the lines, connected by the relations...

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  15. Find the angle between the lines whose direction cosine are given by...

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  16. Find the angle between the lines whose direction cosine are given by...

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  17. Find the angle between the lines whose direction cosine are given by...

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  18. Find the angle between the lines whose direction cosine are given by...

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  19. Define direction cosines of a directed line.

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  20. What are the direction cosines of Y-axis?

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