Use properties of logarithms to write each expression as a sum or difference of logarithms. Assume that variables represent positive real numbers.log11 

A.  log11 9 - 2 log11 s - 2log11 r
B. 9 log11 9 - 2 log11 s - log11 4
C. log11 9 - 2 log11 s - log11 r
D. log11 9 - log11 s - log11 r

Answer: C

Mathematics

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