The function $x ( \alpha - x )$ is strictly increasing on the interval $0 < x < 1$ if and only if (A) $\alpha \geq 2$ (B) $\alpha < 2$ (C) $\alpha < - 1$ (D) $\alpha > 2$
The function $x ( \alpha - x )$ is strictly increasing on the interval $0 < x < 1$ if and only if\\
(A) $\alpha \geq 2$\\
(B) $\alpha < 2$\\
(C) $\alpha < - 1$\\
(D) $\alpha > 2$