Odpowiedź:
[tex](\frac{0,75\frac{4}{3} + 1\frac{1}{4}}{0,8 - 0,6\frac{1}{3}})^{-1} = (\frac{\frac{25}{12} + \frac{5}{4}}{\frac{4}{5} - \frac{14}{15}})^{-1} = (\frac{\frac{25}{12} + \frac{15}{12}}{\frac{12}{15} - \frac{14}{15}})^{-1} = (\frac{\frac{10}{12}}{- \frac{2}{15}})^{-1} = (\frac{10}{12} * (-\frac{2}{15}))^{-1} = (- \frac{20}{180})^{-1} =[/tex]
[tex]= (-\frac{1}{9})^{-1} =- 9[/tex]
Odp. Odwrotność przedstawionej liczby to - 9.
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Odpowiedź:
[tex](\frac{0,75\frac{4}{3} + 1\frac{1}{4}}{0,8 - 0,6\frac{1}{3}})^{-1} = (\frac{\frac{25}{12} + \frac{5}{4}}{\frac{4}{5} - \frac{14}{15}})^{-1} = (\frac{\frac{25}{12} + \frac{15}{12}}{\frac{12}{15} - \frac{14}{15}})^{-1} = (\frac{\frac{10}{12}}{- \frac{2}{15}})^{-1} = (\frac{10}{12} * (-\frac{2}{15}))^{-1} = (- \frac{20}{180})^{-1} =[/tex]
[tex]= (-\frac{1}{9})^{-1} =- 9[/tex]
Odp. Odwrotność przedstawionej liczby to - 9.