Pair Of Straight Lines Question 25
Question: The equation of one of the line represented by the equation $ pq(x^{2}-y^{2})+(p^{2}-q^{2})xy=0 $ , is
Options:
A) $ px+qy=0 $
B) $ px-qy=0 $
C) $ p^{2}x+q^{2}y=0 $
D) $ q^{2}x-p^{2}y=0 $
Show Answer
Answer:
Correct Answer: A
Solution:
Equation of lines are $ (px+qy)(py-qx)=0 $ . Hence, one line is $ px+qy=0 $ .