Предмет: Алгебра, автор: mr23nik

log(7;X)=log(7;2.5)+4 log(7;2)-log(7;10)

Ответы

Автор ответа: sangers1959

log₇x=log₇2,5+4*log₇2-log₇10=log₇(2,5*2/10)=log₇0,5
x=0,5.

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