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A line with direction cosines proportion...

A line with direction cosines proportional to 2,1,2 meet each of the lines `x=y+a=z nd x+a=2y=2z`. The coordinastes of each of the points of intersection are given by (A) `(3a,2a,3a),(a,a,2a)` (B) `(3a,2a,3a),(a,a,a0` (C) `(3a,3a,3a),(a,a,a)` (D) `92a,3a,3a),(2a,a,a0`

A

`(2a, 3a, 3a) , (2a, a,a)`

B

`(3a, 2a, 3a) , (a, a,a)`

C

`(3a, 2a, 3a) , (a, a,2a)`

D

`(3a, 3a, 3a) , (a, a,a)`

Text Solution

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The correct Answer is:
B
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DISHA PUBLICATION-THREE DIMENSIONAL GEOMETRY -Exercise -1 : Concept Builder (Topicwise)
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