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What are the direction cosines of the st...

What are the direction cosines of the straight lines normal to plane 2x + y + 2z + 8 = 0.

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The correct Answer is:
`((2)/(3),(1)/(3),(2)/(3))`.
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ARIHANT PRAKASHAN-THREE DIMENSIONAL GEOMETRY -TOPIC -2- PRACTICE QUESTIONS
  1. Write the equation of the plane passes through y-axis and z-axis.

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  2. Write the distance between of the point of intersection to the plane a...

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  3. What are the direction cosines of the straight lines normal to plane 2...

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  4. The equation of plane perpendicular to z-axis and passing through (1, ...

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  5. The distance between the parallel planes 2x - 3y + 6z +1 = 0 and 4x - ...

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  6. The plane y-z+1=0 is

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  7. What is the angle between the planes y + x = 0 and z = 0 ? .

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  8. Determine the direction cosines of the normal to the plane and the dis...

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  9. Find the equation of the plane which passes through the point (1, 1, 2...

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  10. Find the equation of the plane with intercept 2, 3 and 4 on the X, Y a...

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  11. Show that the normals to the planes oversettor.(overset^i-overset^j+ov...

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  12. Find the vector equation of a plane which is at a distance of 3 units ...

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  13. If the position vectors of two points A ans B are 3overset^i+2overset^...

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  14. passing through the point (-1,3,2) perpendicular to the planes x+2y+...

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  15. Find the equation of the plane through the points (1, 2, -3), (2,3, -4...

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  16. Find the equation of the plane Paralel to the plane 2x-y+3z+1=0 and at...

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  17. Prove that the four points (0, 4, 3), (-1, -5, -3), (-2, -2, 1) and (1...

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  18. Find the equation of the plane passing through the line x = y = z and ...

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  19. Find the image of the point (-2,0,3) with respect to the plane y = 3.

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  20. Find the equation of a plane biscting the line segment joining (-1,4,3...

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