Question 7
The inequality $a^2-6a\le x^2-2x-7\le17-a^2$ holds for every $x\in[-3,3]$. If the parameter range is $k\le a\le l$, find $k^2+l^2$.
SEAMO X 2023 — Paper E — Grade 9–10 Question 7
SEAMO · SEAMO X 2023 — Paper E — Grade 9–10
SEAMO · SEAMO X 2023 — Paper E — Grade 9–10