Question 1203832
.


It does not assume any knowledge or skills outside of finding derivatives 
of standard table functions.


So, it is a routine job for a Calculus student.



How can you "stuck on it" ? Would you like to say that you, 
a Calculus student, do not know basic rules of differentiation ?



It is the same as to say "I am stuck on multiplication table".



My impression from your post is that you even are proud of it . . .