oblicz a) 16 do potegi 75 podzielic 64 do potegi 49 b) pod pierwiastkiem 16 1/3 razy pierwiastek z trzech c) 2 2/3 kreska ułamkowa 0,75 d) 2 do potegi minus dwa minus 2 do potegi minus 3

a) [latex]=(2^4)^{75}:(2^6)^{49}=2^{4*75}:2^{6*49}=2^{300}:2^{294}=2^6=64[/latex] ============ b)[latex] sqrt{16 frac{1}{3} } * sqrt{3} = sqrt{ frac{49}{3}* frac{3}{1} } = sqrt{49} =7[/latex] ==================== c) [latex] frac{2 frac{1}{3} }{0,75} = frac{8}{3} : frac{3}{4} = frac{8}{3} * frac{4}{3}= frac{32}{9} =3 frac{5}{9} [/latex] ======================= d)[latex]2^{-2}-2^{-3}= frac{1}{4} - frac{1}{8} = frac{2}{8} - frac{1}{8}= frac{1}{8}[/latex]