Question 739672
log base 10 (20 sqrt (5))+ log base 10 (5 sqrt (2))
Base 10 is the default, you don't need to specify it.
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log(20 sqrt (5))+ log(5 sqrt (2))
Add logs --> multiply
= log(20 sqrt (5))*(5 sqrt (2))
= log(100*sqrt(10))
= log(100) + log(sqrt(10))
= 2 + 0.5
= 2.5