Hej!
Obliczenia :
[tex]4^9\cdot(\frac{1}{8})^9:(\frac{1}{2})^7=(4\cdot\frac{1}{8})^9:(\frac{1}{2})^7=\\\\=(\frac{1}{2})^9:(\frac{1}{2})^7=(\frac{1}{2})^{9-7}=(\frac{1}{2})^2=\frac{1}{4}[/tex]
Wykorzystane wzory :
[tex]a^n\cdot b^n=(a\cdot b)^n\\\\a^m:a^n=a^{m-n}[/tex]
Pozdrawiam! - Julka
