	Socialist Republic of Vietnam \| Chat Online
	26/01 23:14:42
	Toán học - Lớp 9 \| Toán học \| Lớp 9

Cho a, b, c > 0; a + b + c = 1: \[ \frac{ab}{1-a^2} + \frac{bc}{1-b^2} + \frac{ca}{1-c^2} \geq \frac{\sqrt{3}}{8} \]

Cho a, b, c > 0; a + b + c = 1:
\[
\frac{ab}{1-a^2} + \frac{bc}{1-b^2} + \frac{ca}{1-c^2} \geq \frac{\sqrt{3}}{8}
\]