Answer:
f−1(f(x)) = f(f−1(x)) = x
Step-by-step explanation:
Follow this simple example using the function f(x) = x + 2
f(x) = x + 2
NOw we find the inverse function f^(1)(x).
y = x + 2
x = y + 2
y = x - 2
f^(-1)(x) = x - 2
The inverse function is f^(-1)(x) = x - 2
Now we do the two compositions of functions:
f^(-1)(f(x)) = x + 2 - 2 = x
f(f^(-1)(x)) = x - 2 + 2 = x
Both are equal to x.
Answer: f−1(f(x)) = f(f−1(x)) = x
<span>X/x+2 = 4/5
5x = 4x + 8
5x - 4x = 8
x= 8
</span>
Hi, i think the answer 20/3 hope this helped :D
I don't understand what you're asking, is there supposed to be a picture with the question?
Step-by-step explanation:
18÷3=6
6×9=54
HOPE THIS HELPS!!