A Basic Product
Algebra
Level
3
If \(x, y,\) and \(z\) are positive real numbers such that \(x + y + z = 1,\) find the minimum value of
\[\left( 1+\frac { 1 }{ x } \right) \left( 1+\frac { 1 }{ y } \right) \left( 1+\frac { 1 }{ z } \right) .\]
by
Kartik Sharma