Question 38
**XI-A2** If $a, b, c$ are positive real numbers satisfying condition $a^2 + b^2 + c^2 = 3$
$$
\frac{a}{a^2 + 2b + 3} + \frac{b}{b^2 + 2c + 3} + \frac{c}{c^2 + 2a + 3} \le \frac{1}{2}
$$
confirm that.
$$
\frac{a}{a^2 + 2b + 3} + \frac{b}{b^2 + 2c + 3} + \frac{c}{c^2 + 2a + 3} \le \frac{1}{2}
$$
confirm that.