So sánh \({f^2}\left( 3 \right)\) và \(g\left( 2 \right)\)
A.\({f^2}\left( 3 \right) \le g\left( 2 \right)\)
B.\({f^2}\left( 3 \right) = g\left( 2 \right)\)
C.\({f^2}\left( 3 \right) < g\left( 2 \right)\)
D.\({f^2}\left( 3 \right) > g\left( 2 \right)\)