Question

$log_{0.2}(25)$
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Answer 1

Resposta:

log [0,2] 25

=log[2/10] 25

=log [1/5] 25

=log 25 / log(1/5)

=log 5² / log 5⁻¹

=(2/(-1)) * log 5/log 5

= -2