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Vlad [161]
3 years ago
12

What is log5(4*7)+log5^2 as a single log?

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
6 0

Answer with explanation:

The four options are

(A) log5 21 (B) log5 26 (C) log5 30 (D) log5 56

\rightarrow\log_{5}(4\times 7) +\log_{5}(2)\\\\ \rightarrow \log_{5}28+\log_{5}2\\\\\rightarrow \log_{5}(28 \times 2)\\\\=\log_{5}(56)\\\\ \text{Used this property of log}\\\\ \log_{m} a+\log_{m} b=\log_{m} ab

Option D

Darina [25.2K]3 years ago
4 0
<span>log5(4*7)+log5^2=log5*28*25=log3500
It would be better if you sent a photo task
I'm not sure what I understood correctly
</span>
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Answer:

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