JEE Main2019Math
Q.
Two lines and intersect at the point R. The reflection of R in the xy-plane has coordinates :
- A
(–2, 4, 7)
- B
(2, 4, 7)
- C
(2, –4, –7)
- D
(2, –4, 7)
Solution
Two lines and intersect at the point R. The reflection of R in the xy-plane has coordinates :
(–2, 4, 7)
(2, 4, 7)
(2, –4, –7)
(2, –4, 7)