Practicing Success
Practicing Success
CUET Preparation Today
The direction cosines of the line which is perpendicular to the lines with direction ratios 1, -2, -2 and 0, 2, 1 are: |
$\frac{2}{3},-\frac{1}{3}, \frac{2}{3}$ $-\frac{2}{3},-\frac{1}{3}, \frac{2}{3}$ $\frac{2}{3},-\frac{1}{3},-\frac{2}{3}$ $\frac{2}{3}, \frac{1}{3}, \frac{2}{3}$ |
$\frac{2}{3},-\frac{1}{3}, \frac{2}{3}$ |
The correct answer is Option (1) → $\frac{2}{3},-\frac{1}{3}, \frac{2}{3}$ |
