Angle between lines with direction ratios 2,3,-3 and 6,-3,1 will be
As we have learned
Ange between two lines in terms of direction cosines and direction ratios -
(i) if two lines are parallel then
or
(ii) if two lines are perpendicular then
or1
-
here
Option D
Option 1)
Option 2)
Option 3)
Option 4)
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