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For what value (s) of a will the two ...

For what value (s) of a will the two points `(1,a ,1)a n d(-3,0,a)` lie on opposite sides of the plane `3x+4y-12 z+13=0?` a. `a >-1ora >1//3` b. `a=0` only c. `0

A

`a lt -1 " or " a gt 1//3`

B

` a = 0 ` only

C

`0 lt a lt 1`

D

`-1 lt a lt 1`

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DISHA PUBLICATION-THREE DIMENSIONAL GEOMETRY -Exercise -1 : Concept Builder (Topicwise)
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  12. If Q is the image of the point P(2,3,4) under the reflection in the p...

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  13. The distance of the point (-5,-5,-10) from the point of intersection o...

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  15. If the centre of the sphere ax^2+by^2+cx^2-2x+4y+2z-3=0" is " (1//2...

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  17. The radius of the circle in which the sphere x^2+y^2+z^2+2x-2y-4z-19=0...

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  18. From the point (1,-2,3) lines are drawn to meet the sphere x^2+y^2+z^2...

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  19. Show that the plane 2x-2y+z+12=0 touches the sphere x^2+y^2+z^2-2x-4+2...

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  20. If the plane 2ax - 3ay + 4az + 6 = 0 passes through the midpoint of t...

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