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The d.c.'s of the normal to the plane 2x...

The d.c.'s of the normal to the plane 2x + 3y – 6z + 5 = 0 are

A

`(3, - 2 , 6)`

B

`(2/7, 3/7 , - 6/7)`

C

`(3/7 , - 2/7 , 6/7)`

D

`(1/2, - 1/3, 1)`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-THE PLANE-EXCERISE 1
  1. The image of the point (3, 2, 1) in the plane 2x – y + 3z = 7 is:

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  2. The image of the point (-1, 3, 4) in the plane x – 2y = 0 is

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  3. The d.c.'s of the normal to the plane 2x + 3y – 6z + 5 = 0 are

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  4. The perpendicular distance from the origin to the plane x – 2y + 2z - ...

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  5. The perpendicular distance from the point (-2,3, 1) to the plane 2x – ...

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  6. The normal form of 2x – 2y +z = 5 is

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  7. The equation of the plane passing through (3, 4,-2) and whose normal h...

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  8. A plane passing through (- 1, 2, 3) and whose normal makes equal angle...

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  9. A plane passes through (2, 3, -1) and is perpendicular to the line hav...

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  10. A plane prod passes through the point (1, 1, 1). If b, c, a are the di...

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  11. The equation of the plane which is at a distance of 5 unit from the or...

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  12. The equation of the plane having intercepts 2, 3, 6 is

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  13. The intercepts of the plane 2x – 3y + 5z – 30 = 0 are

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  14. The intercepts form of 6x – 3y – 2z + 12 = 0 is

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  15. The area of the triangle formed by x/4 + y/3 - z/2 = 1 with x-axis and...

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  16. If the areas of triangles formed by a plane with the positive x, y, y,...

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  17. If the plane 7x + 11y + 13z = 3003 meets the coordinate axes in A, B, ...

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  18. Find the angle between the planes 2x - y + z = 6 and x + y + 2 z = 7 .

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  19. The angle between the planes 2x + 6y + 6z = 9, 3x + 4y – 5z = 9 is

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  20. If the planes 2x + 3y - z + 5 = 0, x + 2y – kz + 7 = 0 are perpendicul...

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