Pair Of Straight Lines Question 76

Which of the equations represents the pair of perpendicular straight lines

Options:

A) $ y^{2}+xy-x^{2}=0 $

B) $ y^{2}-xy+x^{2}=0 $

C) $ x^{2}+xy+y^{2}=0 $

D) $ x^{2}+xy-2y^{2}=0 $

Show Answer

Answer:

Correct Answer: A

Solution:

Here $ a+b=0 $ .



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