Teaching RPSC School Lecturer Mock Test Series 2024 Mathematics Three Dimensional Geometry Direction ratios and Direction cosines
What are the direction ratios of normal to the plane 2x - y + 2z + 1 = 0?
1
〈 2, 1, 2 〉
2
\(\left\langle 1, - \dfrac{1}{2}, 1 \right\rangle\)
3
〈 1, -2, 1 〉
4
None of the above
5
Question Not Attempted