1.5. Вычислите: 1) (2/4)⁴; 2) (−3/4)⁴; 3) (−2 1/4)⁵.

1. \(\left(\frac{2}{4}\right)^4=\left(\frac12\right)^4=\frac1{16}\);
2. \(\left(-\frac34\right)^4=\frac{3^4}{4^4}=\frac{81}{256}\);
3. \(\left(-2\frac14\right)^5=\left(-\frac94\right)^5=-\frac{9^5}{4^5}=-\frac{59049}{1024}\).

Ответ: 1) \(\frac1{16}\); 2) \(\frac{81}{256}\); 3) \(-\frac{59049}{1024}\).