Question 80
Determine the non-negative real number $a$ for which the expression
$$
a^3 - a^2 - 2\sqrt{a}
$$
is minimal.
$$
a^3 - a^2 - 2\sqrt{a}
$$
is minimal.
MathNet 2013 Question 80
Math Olympiad Vault · MathNet 2013
Math Olympiad Vault · MathNet 2013