Odpowiedź :
Zad.1
[tex]2\cdot2^{5}\cdot2^{11} =2^{1+5+11} = 2^{17}\\\\Odp. \ D.[/tex]
Zad.2.
[tex]I. \ (5^{5}:5^{2}):(5^{3}:5^{2} = 5^{5-2}:5^{3-2} = 5^{3}:5^{1} = 5^{3-1} = 5^{2}\\\\II. \ 4^{16}:4^{10} = 4^{16-10} = 4^{6} = 4^{5}\cdot 4\\\\III. \ 5^{2}\cdot(5^{5}:5^{4}) = 5^{2}\cdot5^{5-4} = 5^{2}\cdot5\\\\IV. \ 4^{6}:(4^{5}:4^{3}) = 4^{6}:4^{5-3} = 4^{6}:4^{2} = 4^{6-2} = 4^{4}\\\\\\I. \ D. \ \ \ II. \ B. \ \ \ III. \ A. \ \ \ IV \ C.[/tex]