Damian6589
Damian6589
14-07-2016
Mathematics
contestada
what does 7^x=21 in a logarithmic equation
Respuesta :
Аноним
Аноним
14-07-2016
loga x=n ⇔ a^n=x
log₇ 21=x
x=log ₇ 21
x=ln 21 / ln7=1.564575034...
Answer: x=log₇ 21
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