Question

Find the inverse 2^x+4

Answer 1

x

−

4

Interchange the variables.

x

=

2

y

−

4

Solve for

y

.

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y

=

4

+

2

x

Solve for

y

and replace with

f

−

1

(

x

)

.

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f

−

1

(

x

)

=

4

+

2

x