The Equation Of Pair Of Lines Joining Origin To The Points Of Intersection Ofx2 + y2 = 9 And x + y =3, Is

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Question

The equation of pair of lines joining origin to the points of intersection ofx² + y² = 9 and x + y =3, is

xy = 0

easy

Solution

Correct option is

xy = 0

To combined equation of the lines joining the origin to the points of intersection of x² + y² = 9 and x + y = 3 is a homogenous equation of degree given by