Автор - Dino666

2log2 3 + log7 2 - log7 14

Ответ

Проверено экспертом

Автор - Маряруся

2 log_{2}(3)  +  log_{7}( frac{2}{14} )  =  log_{2}(9)  +  log_{7}( frac{1}{7} )  =  log_{2}(9)   - 1

log2 (9) - log2 (2)= log2 (9/2)= log2 (4,5)

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