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If a line in the space makes angle alpha...

If a line in the space makes angle `alpha,beta` and `gamma` with the coordinates axes, then `cos^2alpha+cos^2beta+cos^2gamma` is equal to a)1 b)2 c)0 d)3

A

1

B

2

C

0

D

3

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MAXIMUM PUBLICATION-THREE DIMENSIONAL GEOMETRY-EXAMPLE
  1. Show that the line barr=i+j+lambda(2i+j+4k) is parallel to the plane b...

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  2. Find the distance between the line barr=i+j+lambda(2i+j+4k) and the pl...

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  3. If a line in the space makes angle alpha,beta and gamma with the coord...

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  4. The direction ratios of the line (x-6)/1=(2-y)/2=(z-2)/2are a)6,-2,-2 ...

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  5. If the vector equation of a line is barr=i+j+k+mu(2i-3j-4k) , then t...

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  6. If the Cartesian equation of a plane is x+y+z=12 , then the vector equ...

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  7. Consider the lines barr=(i+2j-2k)+lambda(i+2j) and barr=(i+2j-2k)+mu...

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  8. Consider the lines barr=(i+2j-2k)+lambda(i+2j) and barr=(i+2j-2k)+mu...

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  9. Consider the lines barr=(i+2j-2k)+lambda(i+2j) and barr=(i+2j-2k)+mu...

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  10. Consider the line barr=(2i-j+k)+lambda(i+2j+3k). Find the Cartesian eq...

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  11. Consider the line barr=(2i-j+k)+lambda(i+2j+3k) Find the vector equa...

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  12. Consider the line barr=(2i-j+k)+lambda(i+2j+3k) Write two points on ...

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  13. Find the equation of the plane through the point (1,2,3) and perpendic...

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  14. Find the distance between the planes x-2y+2z-8=0 and 6y-3x-6z=57

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  15. Consider the Cartesian equation of line (x-3)/2=(y+1)/3=(z-5)/-2 Find...

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  16. Consider the Cartesian equation of line (x-3)/2=(y+1)/3=(z-5)/-2 F...

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  17. Consider the Cartesian equation of line (x-3)/2=(y+1)/3=(z-5)/-2 F...

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  18. From the following figure Find vec(AB)

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  19. From the following figure Find the vector equation of line L.

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  20. From the following figure Find a point on line L other than C.

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