JEE MATHEMATICS MCQ: PAIR OF STRAIGHT LINES

1 Hard

1 of 1

Application +4 | -1

The square of distance between the point of intersection of the lines represented by the equation

a x^2+2 h x y+b y^2+2 g x+2 f y+c=0

and origin, is

View answer and explanation

Correct option: A

\frac{c(a+b)-f^2-g^2}{a b-h^2}

Option A (

\frac{c(a+b)-f^2-g^2}{a b-h^2}

) is correct because it represents the square of the distance between the point of intersection of the lines and the origin.

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