Find the Inverse of the Function $$f ( x ) = e ^ { 7 x }$$

question 44

Multiple Choice

Find the inverse of the function.
- $$f ( x ) = e ^ { 7 x }$$

• A) \(f ^ { - 1 } ( x ) = 7 \ln x\)
• B) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { 1 } { 7 } \ln \mathrm { x }\)
• C) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \ln \left( \frac { 1 } { 7 } \mathrm { x } \right)\)
• D) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = - 7 \ln \mathrm { x }\)

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