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The direction ratios of a vector are <1,...

The direction ratios of a vector are <1,-3,-2>, find its direction cosines.

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PRADEEP PUBLICATION-THREE DIMENSIONAL GEOMETRY-EXERCISE
  1. A (3, 2, 0), B(5, 3, 2), C(- 9, 6, -3) are three points forming a tria...

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  2. Calculate the cosine of the angle A of the triangle with vertices A(1,...

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  3. The direction ratios of a vector are <1,-3,-2>, find its direction cos...

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  4. Find the direction cosines of the vectors: 2hati+2hatj-hatk

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  5. Find the direction cosines of the vectors: 6hati-2hatj-3hatk

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  6. Find the direction cosines of the vectors: 3hati+4hatk

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  7. Find the direction cosines of the vectors: hatk

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  8. Find the angles at which the following vectors are inclined to each of...

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  9. Find the angles at which the following vectors are inclined to each of...

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  10. Find the angles at which the following vectors are inclined to each of...

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  11. Find the angles at which the following vectors are inclined to each of...

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  12. Can a vector have direction angles 45^@, 60^@ and 120^@?

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  13. A line makes angles 45^@ and 60^@ with the positive direction of the a...

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  14. If a line makes angles 90^(@),60^(@) and 30^(@) with the positive dire...

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

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  16. A vector vecr has length 14 and direction numbers <2,6,-3>. Find the d...

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  17. A vector vecv is inclined at equal angles to the positive directions o...

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  18. Show that the line joining the mid points of two sides of a triangle i...

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  19. The Cartesian equations of a line are (x-5)/3 = (y+4)/7 =(z-6)/2. Ve...

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

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