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

Asked by ramhar | 17th Feb, 2011, 12:00: AM

Expert Answer:

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.

Answered by  | 17th Feb, 2011, 11:10: AM

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