The combined equation of the two lines ax + by + c = 0 and a'x + b'y + c' = 0 can be written as (ax + by + c) (a'x + b'y + c') =

The combined equation of the two lines ax + by + c = 0 and a'x + b'y + c' = 0 can be written as (ax + by + c) (a'x + b'y + c') = 0 The equation of the angle bisectors of the lines represented by the equation 2x² + xy – 3y² = 0 is

(1) 3x² + 5xy + 2y² = 0

(2) x² – y² + 10xy = 0

(3) 3x² + xy – 2y² = 0

(4) x² – y² – 10xy = 0

The combined equation of the two lines ax + by + c = 0 and a'x + b'y + c' = 0 can be written as (ax + by + c) (a'x + b'y + c') = 0

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