Вычисли и запиши ответы

1. \(\left(\dfrac{1}{5}\right)^2=\) [ ];
2. \((-3)^4=\) [ ];
3. \((-2)^5=\) [ ];
4. \(\left(\dfrac{-2}{7}\right)^3=\) [ ];
5. \(\left(-\dfrac{3}{8}\right)^2=\) [ ];
6. \(-(-4)^2=\) [ ].