Sorry - I can't change the Title, I put something random in whilst checking my Latex syntax now I can't change it to something more appropriate could a mod please do it for me? Thanks

I've copied out the next question and my attempt at an answer, could you please advise as to what I have got wrong;

a)In the each of the following parts, you should simplify your answers where it is appropriate to do so.

a)

i) Write down the derivative of each of the functions

and

ii) Hence, by using the Product Rule, differentiate the funtion

b)

i) Write down the derivative of each of the functions

and

ii) Hence, by using the Quotient Rule, differentiate the funtion

c)

i) Write down the derivative of the function

ii) Hence, by using the Product Rule, differentiate the funtion

i) The derivatives are;

ii) Differentiate the function using the product rule

b)

i) The derivatives are;

ii)Differentiate the function using the Quotient rule

c)

i) The derivatives are;

ii)Differentiate the function using the Composite Rule

Thank you