Q. 3

The direction rat A. 4, 5, 7

B. 4, –5, 7

C. 4, –5, –7

D. –4, 5, 7

Answer :

We have,




The direction ratios of the given lines are proportional to 2,-3,1 and 1,2,-2.


The given lines are parallel to the vectors


and


Vector perpendicular to the given two lines is





Hence, the direction ratios of the line perpendicular to the given two lines are proportional to 4,5,7.

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