Mathematics

Problem

The projections of a vector on the three coordinate axes are

6, -3, 2

, respectively. The direction cosines of the vector are [AIEEE 2009] a.

6, -3, 2

\frac{6}{5}, -\frac{3}{5}, \frac{2}{5}

\frac{6}{7}, -\frac{3}{7}, \frac{2}{7}

-\frac{6}{7}, -\frac{3}{7}, \frac{2}{7}