Pair Of Straight Lines Question 142
Question: The equation $ {{(x+y)}^{2}}-(x^{2}+y^{2})=0 $ represents
Options:
A) A circle
B) Two lines
C) Two parallel lines
D) Two mutually perpendicular lines
Show Answer
Answer:
Correct Answer: D
Solution:
Given equation $ 2xy=0\Rightarrow x=0 $ and $ y=0. $ Hence these are two mutually perpendicular lines (both axes).
BETA
