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matrenka [14]
3 years ago
8

I need help with (b) plz help me

Mathematics
1 answer:
Alex73 [517]3 years ago
5 0
He would need to work at least five hours
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Why does a logarithmic equation sometimes have an extraneous solution?
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The main reason behind this is using properties of logarithm .

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There you use multiplication property and make addition to multiplication then you get extraneous solution because in plenty of cases they occur

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