Question 114090
If ln 4=1.3863, ln 3=1.0986, and lf 5=1.6094, find ln 3/20?
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3/20 = 3/(4*5)
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ln[3/(4*5)] 
= ln3 - [ ln4 + ln5]

= 1.0986 -[1.3863 + 1.6094]

= -1.8971

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Cheers,
Stan H.