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ddd [48]
4 years ago
14

Given log43=0.792 and log421=2.196,what is log47?

Mathematics
1 answer:
IRISSAK [1]4 years ago
8 0

Answer:

1.404

Step-by-step explanation:

Using the rule of logarithms

log x - log y ⇔ log(\frac{x}{y} )

Hence

log_{4} 21 - log_{4} 3 = log_{4}(\frac{21}{3} = log_{4} 7

Thus

log_{4} 7 = 2.196 - 0.792 = 1.404

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