question_answer

The projections of a vector on the three coordinate axes are 6, -3, 2 respectively. The direction cosines of the vector are

A)  \[6,\,\,-3,\,\,2\]              

B)  \[\frac{6}{5},\]\[-\frac{3}{5},\]\[\frac{2}{5}\]

C)  \[\frac{6}{7},\]\[-\frac{3}{7},\]\[\frac{2}{7}\]     

D)  \[-\frac{6}{7},\]\[-\frac{3}{7},\]\[\frac{2}{7}\]

E)  None of these