Odpowiedź:
[tex]a)\ \ (1\frac{3}{4})^6\cdot(\frac{2}{7})^6=(1\frac{3}{4}\cdot\frac{2}{7})^6=(\frac{\not7^1}{\not4_{2}}\cdot\frac{\not2^1}{\not7_{1}})^6=(\frac{1}{2})^6=\frac{1}{64}\\\\\\b)\ \ (0,8)^4:(2\frac{2}{3})^4=(0,8:2\frac{2}{3})^4=(\frac{4}{5}:\frac{8}{3})^4=(\frac{\not4^1}{5}\cdot\frac{3}{\not8_{2}})^4=(\frac{3}{10})^4=\frac{81}{10000}[/tex]
[tex]c)\ \ (4\frac{1}{2})^3\cdot(-\frac{2}{3})^3\cdot(-2)^3=(4\frac{1}{2}\cdot\frac{2}{3}\cdot2)^3=(\frac{\not9^3}{\not2_{1}}\cdot\frac{\not4^2}{\not3_{1}})^3=6^3=216\\\\\\d)\ \ (2\frac{1}{2})^4\cdot0,6^4:(-1,5)^4=(2\frac{1}{2}\cdot0,6:1,5)^4=(\frac{\not5^1}{2}\cdot\frac{3}{\not5_{1}}:\frac{15}{10})^4=(\frac{3}{2}:\frac{3}{2})^4=1^4=1[/tex]
