a=1,5*4/5+8/25:0,8=15*4/10*5+8*10/258=12/10+10/25=60/50+20/50=80/50=160/100=1,6. 1/4*1,6=0,25*1,6=0,4. 2. 32*2do potęgi 8:2do potęgi18=32:2do potęgi 10=32:1024=0,03125 działanie przepisz=[1,44*2*(-5.25)]do potęgi -1=(2,88*-5,25)do potęgi -1=15,12
zad 1 [latex]a=1,5*frac{4}{5}+frac{8}{15}:0,8=frac{3}{2}*frac{4}{5}+frac{8}{15}:frac{4}{5}=frac{3}{1}*frac{2}{5}+frac{8}{15}*frac{5}{4}=\ =frac{6}{5}+frac{2}{3}*frac{1}{1}=frac{18}{15}+frac{10}{15}=frac{28}{15}[/latex]\ [latex]frac{1}{4}a=frac{1}{4}*frac{28}{15}=frac{7}{15}[/latex] ------------------------------------------------------------------------------------- zad 2 [latex]32*2^{8}:2^{18}=2^{5}*2^{8}:2^{18}=2^{5+8-18}=2^{-5}=(frac{1}{2})^{5}=frac{1}{32}\ ---\ ((1,2)^{-2}*2*(2frac{1}{4})^{-1})^{-1}=[(frac{6}{5})^{-2}*2*frac{9}{4}^{-1}]^{-1}=[frac{25}{36}*2*frac{4}{9}]^{-1}=\ =[frac{25}{18}*frac{4}{9}]^{-1}=[frac{25}{9}*frac{2}{9}]^{-1}=(frac{50}{81})^{-1}=frac{81}{50}=frac{162}{100}=1,62[/latex]
