Three Dimensional Geometry Question 71
Question: If the co-ordinates of the points $ P,,Q,R,,S $ be (1, 2, 3), (4, 5, 7), (? 4, 3, ? 6) and (2, 0, 2) respectively, then
Options:
A) $ PQ||RS $
B) $ PQ,\bot ,RS $
C) $ PQ=RS $
D) None of these
Show Answer
Answer:
Correct Answer: D
Solution:
Find angle between the lines PQ and RS, we get that neither $ PQ||RS $ nor $ PQ\bot RS. $ Also $ PQ\ne RS. $
BETA
