# Make Eqns inside Conditional Bigger

The code below works, but when LaTex generates the equations, the equations are small and appear "scrunched". How can this code be modified s.t. the equations are at least as big as the term $F(x)$ in the equation?

$$F(x)= \begin{cases} \frac{1 - \frac{\theta}{x}^{\alpha}}{1 - \frac{\theta}{T}^{\alpha}} & \text{if}\ a=1 \\ \frac{\log (x / \theta)}{\log(T/\theta)} & \text{otherwise} \end{cases}$$


The cases environment uses \textstyle, not \displaystyle The same is valid for array, matrix and the like.
Load the mathtools package, in the place of amsmath, and use dcases.