Mathematics · 2021
JEE Main · 27 August 2021, Shift 2 · Q74
Let A ( a, 0), B ( b, 2 b +1) and C (0, b ), b ≠ 0,| b | ≠ 1, be points such that the area of triangle ABC is 1 sq. unit, then the sum of all…
Let $\displaystyle \mathrm{A}(\mathrm{a}, 0), \mathrm{B}(\mathrm{b}, 2 \mathrm{~b}+1)$ and $\displaystyle \mathrm{C}(0, \mathrm{~b}), \mathrm{b} \neq 0,|\mathrm{~b}| \neq 1$, be points such that the area of triangle ABC is $\displaystyle 1$ sq. unit, then the sum of all possible values of a is :
Official answer
(4)
$\displaystyle \frac{-2 b^2}{b+1}$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.