26) 0,25⋅(\frac{1}{4})² =

26) $$0.25 \cdot (\frac{1}{4})^2 = \frac{1}{4} \cdot (\frac{1}{4})^2 = (\frac{1}{4})^1 \cdot (\frac{1}{4})^2 = (\frac{1}{4})^{1+2} = (\frac{1}{4})^3 = \frac{1}{64}$$

Ответ: 1/64