If 𝑓(𝑔(𝑥))=3𝑥+5‾‾‾‾‾‾‾√, find the functions 𝑓(𝑥) and 𝑔(𝑥).Note: there may be more than one solution, but do not use the trivial solution 𝑔(𝑥)=𝑥.𝑓(𝑥)= 𝑔(𝑥)=
Question
If 𝑓(𝑔(𝑥))=3𝑥+5‾‾‾‾‾‾‾√, find the functions 𝑓(𝑥) and 𝑔(𝑥).Note: there may be more than one solution, but do not use the trivial solution 𝑔(𝑥)=𝑥.𝑓(𝑥)= 𝑔(𝑥)=
Solution
The problem is asking to find two functions f(x) and g(x) such that when g(x) is plugged into f(x), the result is the square root of 3x + 5.
Let's start by choosing a simple function for g(x). We want to avoid the trivial solution g(x) = x, so let's choose g(x) = 3x.
Now we need to find f(x) such that f(g(x)) = sqrt(3x + 5). If we plug g(x) = 3x into this equation, we get f(3x) = sqrt(3x + 5).
To find f(x), we can replace 3x with x in the above equation, which gives us f(x) = sqrt(x + 5).
So, the functions are:
f(x) = sqrt(x + 5) g(x) = 3x
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