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Find the angle between the lines: x-2y+z...

Find the angle between the lines: `x-2y+z=0=x+2y-2z` and `x+2y+z=0=3x+9y+5z`.

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MODERN PUBLICATION-Three Dimensional Geometry-EXERCISE
  1. Find the equation of the plane passing through (a, b, c) and parallel ...

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  2. Find cartesian equations of the plane containing the lines: vecr=2hat...

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  3. Find the angle between the lines: x-2y+z=0=x+2y-2z and x+2y+z=0=3x+9y+...

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  4. Show that the lines : 3x-2y+5=0, y+3z-15=0 and (x-1)/5=(y+5)/-3=z/1 ar...

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  5. Find the equations of the line passing through the point (1,-2,-3) and...

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  6. Find the equation of the plane, which bisects the line joining the poi...

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  7. Find the equation of the plane throught he intersection of the planes ...

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  8. Find the vector equation of the plane through the planes : vecr*(hati+...

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  9. Find the vector equation of the following plane in scalar product form...

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  10. Find the Cartesian equation of the plane passing through three non-col...

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  11. Find the equations of the plane that passes through three points : (1,...

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  12. Find the equations of the planes passing through the following points ...

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  13. Find the equation of the plane through three non-collinear points (0, ...

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  14. Find the equation of the plane passing through the points : (3, -1, 2)...

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  15. Find the equation of the plane through three non-collinear points: (2,...

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  16. Find the equation of the plane through three non-collinear points: (2,...

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  17. Find the equation of the plane throught he points (3,-2,4), (-13,17,-1...

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  18. Find the equations of the planes passing through the following points ...

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  19. Find the vector equations of the plane passing through the points R(2...

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  20. Find the distance between the points : (2,1,0), (1,1,2).

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