MathsJEE Main 24 Jan 2026, Shift 1·Q13·MCQ·Easy–moderate

Straight Lines · Angle bisector equation

Let

A(1, 0)

B(2, -1)

and

C\left(\dfrac73, \dfrac43\right)

be three points. If the equation of the bisector of the angle

ABC

\alpha x + \beta y = 5

, then the value of

\alpha^2 + \beta^2

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