Pair Of Straight Lines Question 18
Question: The equations of the lines represented by the equation $ ax^{2}+(a+b)xy+by^{2}+x+y=0 $ are
Options:
A) $ ax+by+1=0 $ , $ x+y=0 $
B) $ ax+by-1=0 $ , $ x+y=0 $
C) $ ax+by+1=0 $ , $ x-y=0 $
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
Equation $ ax^{2}+(a+b)xy+by^{2}+x+y=0 $ can be written as $ (ax+by+1)(x+y)=0 $ .
BETA
