Solve the Problem $f ( x ) = \log 7 x$

question 376

Multiple Choice

Solve the problem.
-If $f ( x ) = \log 7 x$ , find $f \left( 7 ^ { 3 } \right)$ .

• A) 21
• B) 3
• C) \(\log _ { 3 } x\)
• D) 7

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