Teaching UP TGT Mock Test Series 2025 Mathematics Three Dimensional Geometry Direction ratios and Direction cosines
The direction cosines of the line joining the points (4, 3, -5) and (-2, 1, -8) are
1
\(\left( {\frac{-6}{7},\frac{-2}{7},\frac{-3}{7}} \right)\)
2
\(\left( {\frac{2}{7},\frac{3}{7},\frac{6}{7}} \right)\)
3
\(\left( {\frac{6}{7},\frac{3}{7},\frac{2}{7}} \right)\)
4
None of these