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A line with direction cosines proportion...

A line with direction cosines proportional to 2,1,2 meets each of the lines x=y+a=z and x+a=2y=2z. The coordinates of each of the points of intersection are given by

A

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

B

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

C

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

D

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

Text Solution

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The correct Answer is:
B
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HIMALAYA PUBLICATION-THREE DIMENSIONAL GEOMETRY-QUESTION BANK
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