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Popular >

inverse of f(x)=2^{-x}-5

Solution

inverse

f (x) = 2^{- x} - 5

Solution

- \frac{ln ( x + 5 )}{ln ( 2 )}

Solution steps

y = 2^{- x} - 5

Replace

x

with

y

x = 2^{- y} - 5

Solve for

y, x = 2^{- y} - 5

- \frac{ln ( x + 5 )}{ln ( 2 )}

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Frequently Asked Questions (FAQ)

What is the inverse of f(x)=2^{-x}-5 ?
The inverse of f(x)=2^{-x}-5 is -(ln(x+5))/(ln(2))