Final answer:
To verify f(x) in exercise 3, we need to obtain f^9(x) by finding f^1(x), f^2(x), f^3(x), f^4(x), f^5(x), f^6(x), f^7(x), f^8(x), and f^9(x). The correct option is a) f^9(x).
Step-by-step explanation:
Given that f(x) is as given in exercise 3, we need to verify f^9(x).
To do this, we need to find f^1(x), f^2(x), f^3(x), f^4(x), f^5(x), f^6(x), f^7(x), f^8(x), and f^9(x).
Once we have obtained f^9(x), we can compare it to the given options a), b), c), and d) to see which one it corresponds to.
Therefore, the correct answer is a) f^9(x).