1.

If \[\mathbf{lo}{{\mathbf{g}}_{3}}\mathbf{2}=\mathbf{x}\] then the value of \[\frac{\mathbf{lo}{{\mathbf{g}}_{10}}7\mathbf{2}}{\mathbf{lo}{{\mathbf{g}}_{10}}\mathbf{2}4}\] Is

A.  \[\frac{1+x}{1-x}\]                  
B.  \[\frac{2+3x}{1+3x}\]
C.  \[\frac{2-3x}{2+3x}\]               
D.  \[\frac{3x+1}{3x+2}\]
Answer» C.  \[\frac{2-3x}{2+3x}\]               


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