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kvv77 [185]
4 years ago
14

Use the change of base formula to evaluate log4 20.

Mathematics
1 answer:
Shalnov [3]4 years ago
5 0
Your calculator probably only evaluates in base 10 (ln is base e but we won't use that today)

so
log_a(b)=\frac{log_c(b)}{log_c(a)}
where c is the new base
so if you wanted in base 10
log_4(20)=\frac{log_{10}(20)}{log_{10}(4)}
using calculator, that is about 2.16096
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