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Popular Functions >

inverse of f(x)=2^{1-x}

Solution

inverse

f (x) = 2^{1 - x}

Solution

- \frac{ln ( x ) - ln ( 2 )}{ln ( 2 )}

Solution steps

y = 2^{1 - x}

Replace

x

with

y

x = 2^{1 - y}

Solve for

y, x = 2^{1 - y}

- \frac{ln ( x ) - ln ( 2 )}{ln ( 2 )}

Graph

Popular Examples

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Frequently Asked Questions (FAQ)

What is the inverse of f(x)=2^{1-x} ?
The inverse of f(x)=2^{1-x} is -(ln(x)-ln(2))/(ln(2))