Expand log343/125
Hint:loga x/y= loga x-loga y
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0
Step-by-step explanation:
Answer :
3( log 7 - log 5)
Step-by-step explanation :
Expansion : log(343/125)
It's a question of Logaritm, We will solve by using identities.
We know
\begin{gathered}log( \frac{343}{125} ) \\ \\ = log(343) - log(125) \\ \\ = log( {7}^{3} ) - log( {5}^{3} ) \\ \\ = 3 log(7) - 3 log(5) \\ \\ = 3( log7 - log5) \\ \\\end{gathered}
log(
125
343
)
=log(343)−log(125)
=log(7
3
)−log(5
3
)
=3log(7)−3log(5)
=3(log7−log5)
FORMULAE USED :
\begin{gathered}log( \frac{m}{n} ) = log(m) - log(n) \\ \\ \\ log( {m}^{n} ) = n log(m)\end{gathered}
log(
n
m
)=log(m)−log(n)
log(m
n
)=nlog(m)
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0
Hope this answers the question
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