# Calc

express 3ln(r)- 5ln(s)+ 7ln (t) as a single logarithm.

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1. 3ln(r)- 5ln(s)+ 7ln (t)

which is

ln(r)^3- ln(s)^5+ ln(t)^7

which is

ln[(r)^3 x (t)^7 /(s)^5]

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posted by Dr Russ

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