1.

\[\frac{\mathbf{lo}{{\mathbf{g}}_{\mathbf{5}}}\mathbf{6}}{\mathbf{lo}{{\mathbf{g}}_{\mathbf{5}}}\mathbf{2+1}}=\]

A.  \[lo{{g}_{2}}6\]                      
B.  \[lo{{g}_{2}}5\]           
C.  \[lo{{g}_{10}}6\]    
D.  \[lo{{g}_{10}}30\]
Answer» D.  \[lo{{g}_{10}}30\]


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