Mathematics · 2022
JEE Main · 26 July 2022, Shift 2 · Q13
Let the abscissae of the two points P and Q on a circle be the roots of x^2-4 x-6=0 and the ordinates of P and Q be the roots of y^2+2 y-7=0. If PQ…
Let the abscissae of the two points P and Q on a circle be the roots of $\displaystyle x^2-4 x-6=0$ and the ordinates of P and Q be the roots of $\displaystyle y^2+2 y-7=0$. If PQ is a diameter of the circle $\displaystyle x^2+y^2+2 a x+2 b y+c=0$, then the value of $\displaystyle (a+b-c)$ is
\_\_\_\_.
Official answer
(1)
$\displaystyle 12$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.