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algol [13]
3 years ago
6

Given the function f(x) = log2(x + 6), find the value of f−1(3).

Mathematics
2 answers:
Svetlanka [38]3 years ago
8 0

Answer:

f^{-1}(3)=2 is correct

Step-by-step explanation:

Given the function f(x) = \log_2(x + 6)

We need to find f^{-1}(3)

First we find the inverse of the function

y= \log_2(x + 6)

Switch x and y

x= \log_2(y + 6)

Solve for y

2^x=y + 6

y=2^x-6

\therefore, f^{-1}(x)=2^x-6

Put x=3

f^{-1}(3)=2^3-6\Rightarrow 8-6=2

Thus, f^{-1}(3)=2 is correct

Lina20 [59]3 years ago
5 0
The first answer choice is your answer :)
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