Предмет: Математика, автор: anaantonovna000

Упростите. 8/9•9/8, 10/11•11/10, 12/13•13/12, 14/15•15/14•16/17.​

Ответы

Автор ответа: mihailfilarin
1

Пошаговое объяснение:

1)

\frac{8}{9} \times \frac{9}{8} = \frac{8 \times 9}{9 \times 8} = \frac{72}{72} = 1

2)

\frac{10}{11} \times \frac{11}{10} = \frac{110}{110} = 1

3)

\frac{12}{13} \times \frac{13}{12} = \frac{156}{156} = 1

4)

\frac{14}{15} \times \frac{15}{14} \times \frac{16}{17} = \frac{210}{210} \times \frac{16}{17} = 1 \times \frac{16}{17} = \frac{16}{17}

mihailfilarin: Если мой ответ вам помог, отметьте его как лучший
anaantonovna000: ХАХХАХАХ я короче сейчас это загуглила посмотрела автора а это я ХАХАХАХАХАХ совпадение?
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