Mathematics · 2021
JEE Main · 26 February 2021, Shift 1 · Q64
The value of |(a+1)(a+2), a+2, 1; (a+2)(a+3), a+3, 1; (a+3)(a+4), a+4, 1| is:
The value of $\displaystyle \left|\begin{array}{lll}(a+1)(a+2) & a+2 & 1 \\ (a+2)(a+3) & a+3 & 1 \\ (a+3)(a+4) & a+4 & 1\end{array}\right|$ is :
Official answer
(3)
$\displaystyle -2$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.