Odpowiedź:
[tex]Zad.3\\\\a)\ \ \dfrac{2^5\cdot2^3}{2^8}=\dfrac{2^{5+3}}{2^8}=\dfrac{2^8}{2^8}=1\\\\\\b)\ \ \dfrac{3^4\cdot3^3}{3^2\cdot3^0}=\dfrac{3^{4+3}}{3^2\cdot1}=\dfrac{3^7}{3^2}=3^{7-2}=3^5=243\\\\\\c)\ \ \dfrac{9^5\cdot9^2}{9\cdot9^4}=\dfrac{9^{5+2}}{9^{1+4}}=\dfrac{9^7}{9^5}=9^{7-5}=9^2=81\\\\\\d)\ \ \dfrac{5^1^1}{5^6\cdot5^6}=\dfrac{5^1^1}{5^{6+6}}=\dfrac{5^1^1}{5^1^2}=5^{11-12}=5^{-1}=\frac{1}{5}[/tex]
