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Fundamental Properties of Differentiation

Michael Green

Michael Green

4 min read

Next Topic - The Quotient Rule

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Study Guide Overview

This study guide covers the product rule for finding the derivative of two functions multiplied together. It defines the rule, provides worked examples with functions like e2x(x5+3x)e^{2x}(x^5 + 3x)e2x(x5+3x) and ln(3x)∗sin(2x)ln(3x) * sin(2x)ln(3x)∗sin(2x), and offers practice questions. The guide also emphasizes the difference between the product rule and the chain rule for composite functions, and includes a glossary of terms like product rule and composite function.

#Derivatives of Products

#Table of Contents

  1. Introduction
  2. Product Rule
  3. Exam Tip
  4. Worked Examples
    • Example (a)
    • Example (b)
  5. Practice Questions
  6. Glossary
  7. Summary and Key Takeaways

#Introduction

Understanding how to differentiate the product of two functions is crucial in calculus. This guide will cover the product rule, provide clear examples, and include practice questions to solidify your understanding.

#Product Rule

The product rule is used to find the derivative of the product of two functions.

#Definition

If f(x)=g(x)⋅h(x)f(x) = g(x) \cdot h(x)f(x)=g(x)⋅h(x), then the derivative f′(x)f'(x)f′(x) is given by:

f′(x)=g′(x)⋅h(x)+g(x)⋅h′(x)f'(x) = g'(x) \cdot h(x) + g(x) \cdot h'(x)f′(x)=g′(x)⋅h(x)+g(x)⋅h′(x)

Alternatively, if $y = u \c...

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Previous Topic - Derivatives of Sine and Cosine FunctionsNext Topic - The Quotient Rule

Question 1 of 8

What is the correct formula for the product rule when differentiating f(x)=g(x)⋅h(x)f(x) = g(x) \cdot h(x)f(x)=g(x)⋅h(x)? 🤔

f′(x)=g′(x)+h′(x)f'(x) = g'(x) + h'(x)f′(x)=g′(x)+h′(x)

f′(x)=g(x)⋅h′(x)−g′(x)⋅h(x)f'(x) = g(x) \cdot h'(x) - g'(x) \cdot h(x)f′(x)=g(x)⋅h′(x)−g′(x)⋅h(x)

f′(x)=g′(x)⋅h(x)+g(x)⋅h′(x)f'(x) = g'(x) \cdot h(x) + g(x) \cdot h'(x)f′(x)=g′(x)⋅h(x)+g(x)⋅h′(x)

f′(x)=g(x)⋅h(x)f'(x) = g(x) \cdot h(x)f′(x)=g(x)⋅h(x)