Question
Thu February 17, 2011 By: Charu Tripathi

sir how can we find the direction ratios of a vector if only direction cosines are given ?

Expert Reply
Thu February 17, 2011
Dear Student
Let L,M,N are the direction cosines  and a,b,c be its direction ratios
then
 
So if L M and N are known then the number proportional to them gives us direction ratios.
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