JEE MATHEMATICS MCQ: PAIR OF STRAIGHT LINES

1 Easy

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The lines represents by

a{x^2} + 2hxy + b{y^2} = 0

are perpendicular to each other, if

View answer and explanation

Correct option: B

a + b = 0

Option B (

a + b = 0

) is correct because the sum of the coefficients of

x^2

and

y^2

is zero for perpendicular lines.

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