If the line l₁: 3y - 2x = 3 is the angular bisector of the line l… | JEE Main 2023 Mathematics PYQ

NVAMediumJEE Main 2023 · 11 April, Shift 2Straight Line Equations

If the line $l_1 : 3y - 2x = 3$ is the angular bisector of the line $l_2 : x - y + 1 = 0$ and $l_3 : \alpha x + \beta y + 17 = 0$ , then $\alpha^2 + \beta^2 - \alpha - \beta$ is equal to _____.

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