7. [8 marks] Find the derivative of each of the following functions: a. (x + 3x + 2) + 1 b. (ln(x+4) - 1) c. (x4+1)4 5 d. ()

7. [ 8 marks] Find the derivative of each of the following functions: a. \\( \\left(x^{3}+3 x+2\ ight)^{2}+1 \\) b. \\( \\left(\\ln \\left(x^{2}+4\ ight)-1\ ight)^{3} \\) c. \\( \\left(x^{4}+1\ ight)^{4} \\) d. \\( \\left(\\frac{x}{x^{3}+1}\ ight)^{5} \\)