Teaching DSSSB TGT Mock Test 2025 Mathematics Three Dimensional Geometry Direction ratios and Direction cosines
If L is the line with direction ratios < 3, -2, 6 > and passing through (1, -1, 1), then what are the coordinates of the points on L whose distance from (1, -1, 1) is 2 units?
1
\(\left(-\frac{11}{7}, \frac{13}{7}, \frac{19}{7}\right) \) and \(\left(\frac{1}{7}, \frac{3}{7}, \frac{5}{7}\right) \)
2
\( \left(\frac{19}{7},-\frac{11}{7}, \frac{13}{7}\right) \) and \(\left(-\frac{1}{7}, \frac{3}{7},-\frac{5}{7}\right) \)
3
\( \left(\frac{13}{7}, \frac{11}{7}, \frac{19}{7}\right) \) and \(\left(-\frac{1}{7},-\frac{3}{7}, \frac{5}{7}\right) \)
4
\(\left(\frac{13}{7},-\frac{11}{7}, \frac{19}{7}\right)\) and \(\left(\frac{1}{7},-\frac{3}{7},-\frac{5}{7}\right)\)