Skip to content / Đến nội dung
ThichHocToan.com

TIMO - 2017 - Grade 9 - Heat Round - Paper 5 Question 9

TIMO · TIMO - 2017 - Grade 9 - Heat Round - Paper 5

Question 9

Given $x>0$ and $x+\frac1x=12$, find $x^2+\frac1{x^2}$.