Create a complicated mathematical equation.
A complicated mathematical equation could be:

f(x) = (3x^5 + 2x^4 - 7x^3 + 2)/(√(x^2 + 2x + 1)) + ln(abs(x)) + e^x*cos(x)
Complete the following task based on the instruction and optional input provided.### Instruction:
Create a complicated mathematical equation.

### Output:
A complicated mathematical equation could be:

f(x) = (3x^5 + 2x^4 - 7x^3 + 2)/(√(x^2 + 2x + 1)) + ln(abs(x)) + e^x*cos(x)