Hello,Originally Posted byKiwigirl

with most of your problems you have to use the chain rule. With b) I used the quotient rule and with c) you have to controle if I wrote the function correctly:

to a):

to b):

to c):

to d):

To 2.: You have a function of grade 3. You want to get the third derivative. That must be a constant. So g'''(x)=3!*7=42.

Greetings

EB