JEE MATHEMATICS MCQ: PAIR OF STRAIGHT LINES

1 Easy

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Application +4 | -1

The equation to the pair of lines perpendicular to the pair of lines

3 x^2-4 x y+y^2=0

, is

View answer and explanation

Correct option: A

x^2+4 x y+3 y^2=0

Option A (

x^2+4 x y+3 y^2=0

) is correct because the equation of the perpendicular lines is obtained by interchanging the coefficients of

x^2

and

y^2

and changing the sign of the middle term.

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