0 votes 0 votes Let $m$ and $n$ be nonzero integers. Define $\text{A}_{m, n}= \left \{ x \in \mathbb{R}:n^{2} x^{3}+ 2020x^{2}+mx = 0\right \}$. Then the number of pairs $(m, n)$ for which $\text{A}_{m, n}$ has exactly two points is $0$ $10$ $16$ $\infty$ Others isi2020-mma + – admin asked Jul 23, 2022 edited Aug 7, 2022 by Lakshman Bhaiya admin 157 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.