Log 5 plus log 2 equals?
log5 + log2 =
2 answers:
log a + log b=log (a*b)
log 5 + log 2=log (5*2)=log 10
loga a=1
Therefore:
log 10=1
Answer: log 5+ log 2=log 10=1
The sum of logs = the log of the product .
log(5) + log(2) = log(5·2) = log(10)
If these are all logs to the base 10, then log(10) = 1
log(5) + log(2) = 1
Let's try it out !
According to my calculator ...
log(5) = 0.69897...
log(2) = 0.30103...
Log(5) + log(2) = 0.99999... yay ! not bad
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