The Chain Rule

Learning Objectives

  • The Product Rule
  • The Quotient Rule
  • Average and marginal average functions

Exercises

1.

\(\dfrac{dy}{dx}= 15(2x+e^x)^4(2+e^x)\)

2.

\(\dfrac{dy}{dx}= 14^{e^x+\log_4(x)+4x^8}(\ln(14)) \left(e^x+\dfrac{1}{x\ln(4)}+32x^7\right)\)

3.

\(\dfrac{dy}{dx} = -48x^{11} - \dfrac{1}{x+3} - \dfrac{2}{x-3}\)

4.

\(\dfrac{dy}{dx} = \dfrac{3x^2+44}{(x^3+44x-18)\ln(7)} - \dfrac{5x^4-3x^2-1}{(x^5-x^3-x+1)\ln(7)} - 12x^3\)

5.

  1. \(V'(4) = 30e^9\)
  2. \(C'(2)=36\)

6.

  1. The balance of the account is increasing at a rate of $23.77 per year after three years.
  2. The balance of the account is increasing at a rate of $63.74 per year after 12 years.

7.

\(\dfrac{dz}{dy}=\left(17-12\left(7\ln(y)+e^y\right)^{-4}\right)\left(\dfrac{7}{y}+e^y\right)\)

8.

\(f'(x)=\left(5x^{3x+4}\right)\left[(3x+4)\left(\frac{1}{x}\right)+3\ln(x)\right]\)