Pair Of Straight Lines Question 147
Question: The equation of pair of straight lines perpendicular to the pair $ ax^{2}+2hxy+by^{2}=0 $ is
[MP PET 1989]
Options:
A) $ ax^{2}-2hxy+by^{2}=0 $
B) $ bx^{2}+2hxy+ay^{2}=0 $
C) $ ay^{2}-2hxy+bx^{2}=0 $
D) $ ay^{2}-bx^{2}=0 $
Show Answer
Answer:
Correct Answer: C
Solution:
Perpendicular lines are given by $ bx^{2}-2hxy+ay^{2}=0 $ .
BETA
