1. Zadatak

Izračunajte:

$$-\frac{2^0}{\sqrt2}+\frac{2^1}{\sqrt4}-\frac{2^2}{\sqrt8}+\frac{2^3}{\sqrt{16}}-\frac{2^4}{\sqrt{32}}+\frac{2^5}{\sqrt{64}}-\frac{2^6}{\sqrt{128}}+\frac{2^7}{\sqrt{256}}.$$

Rješenje