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Find the Inverse Function f1\mathrm { f } ^ { - 1 }

Question 251

Multiple Choice

Find the inverse function f1\mathrm { f } ^ { - 1 } of the function f.
- f(x) =7cosx+4f ( x ) = 7 \cos x + 4


A) f1(x) =7cos1x+4f ^ { - 1 } ( x ) = 7 \cos ^ { - 1 } x + 4
B) f1(x) =cos1(x+47) f ^ { - 1 } ( x ) = \cos ^ { - 1 } \left( \frac { x + 4 } { 7 } \right)
C) f1(x) =sin(x47) f ^ { - 1 } ( x ) = \sin \left( \frac { x - 4 } { 7 } \right)
D) f1(x) =cos1(x47) f ^ { - 1 } ( x ) = \cos ^ { - 1 } \left( \frac { x - 4 } { 7 } \right)

Correct Answer:

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