4. 10 marks Find the 100th derivative of the function y = e+ cos(4x) + In(154x) + 299. Make sure you show all your work and justify your claims. Hint: The factorial, denoted by "!", is defined for n E N as n! = n . (n - 1) . (n - 2) . ..1.2. /5 marks Consider the function implicitly defined by x27+3 =yz +1. Find the derivative dy dx