Intellectual Olympiad in Mathematics - 2026 ongoing

Subject: Mathematics
Level: X
Category: educator
Quiz questions: in Chinese
Example question: 曲线 \(x^2+xy+y^2=7\) 在点 \((1,2)\) 处的切线斜率是多少？ \(-\frac45\), \(-\frac54\), \(\frac45\), \(\frac54\)