\[\frac{d}{dx}{{\log }_{7}}({{\log }_{7}}x)\]=

1.	\[\frac{d}{dx}{{\log }_{7}}({{\log }_{7}}x)\]=
A.	\[\frac{1}{x{{\log }_{e}}x}\]
B.	\[\frac{{{\log }_{e}}7}{x{{\log }_{e}}x}\]
C.	\[\frac{{{\log }_{7}}e}{x{{\log }_{e}}x}\]
D.	\[\frac{{{\log }_{7}}e}{x{{\log }_{7}}x}\]
Answer» D. \[\frac{{{\log }_{7}}e}{x{{\log }_{7}}x}\]

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\[\frac{d}{dx}{{\log }_{7}}({{\log }_{7}}x)\]=

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