Identify functions and such that the given function equals

Question

Identify functions   and  such that the given function equals

Quizplus · Accepted Answer

The given function has a pattern where the first four digits (11eaa948_cdf3) remain constant and only the last four digits keep changing. This suggests that the functions are related in some way and that we need to identify the pattern in the last four digits. 
On closer observation, we notice that in each of the functions given in option B, the last four digits are obtained by adding a constant number (3958, 3959, and 395a) to the last four digits of the function given in the question stem. Therefore, we can conclude that the functions in option B are the ones that are related to the given function by a constant addition of 3958, 3959, and 395a to the last four digits.

Identify Functions and Such That the Given