A) $ x-y+1=0,\ \ x+y+1=0 $
B) $ x-y-1=0,\ \ x+y-1=0 $
C) $ x-y-1=0,\ \ x+y+1=0 $
D) None of these
Correct Answer: C
Show Answer
Answer:
Solution:
Þ $ x-y-1=0 $ and $ x+y+1=0 $ .
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