Mathematics · 2023
JEE Main · 10 April 2023, Shift 2 · Q1
Let A ={2,3,4} and B ={8,9,12}. Then the number of elements in the relation R={((a_1, b_1),(a_2, b_2)) ∈(A × B, A × B): a_1. divides b_2 and a_2…
Let $\displaystyle \mathrm{A}=\{2,3,4\}$ and $\displaystyle \mathrm{B}=\{8,9,12\}$. Then the number of elements in the relation $\displaystyle R=\left\{\left(\left(a_1, b_1\right),\left(a_2, b_2\right)\right) \in(A \times B, A \times B): a_1\right.$ divides $\displaystyle b_2$ and $\displaystyle a_2$ divides $\displaystyle \left.b_1\right\}$ is
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 36$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.