Find the derivative of ƒ (x) = 8ª ln (x).

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
icon
Related questions
Question

please explain the answer or how you got the answer.

---

### Derivative Calculation Exercise

#### Problem Statement:
Find the derivative of \( f(x) = 8^x \ln(x) \).

Use the rules of differentiation to solve this problem. Remember, the \( ln(x) \) represents the natural logarithm of \( x \), which is a common function in calculus.

#### Solution:
1. **Identify the Components:**
   - \( u(x) = 8^x \)
   - \( v(x) = \ln(x) \)

2. **Apply the Product Rule**:
   The product rule states that if you have two functions, \( u(x) \) and \( v(x) \), the derivative of their product is:
   \[
   (u(x) \cdot v(x))' = u'(x) \cdot v(x) + u(x) \cdot v'(x)
   \]

3. **Differentiate Each Function:**
   - Derivative of \( u(x) = 8^x \):
     \[
     u'(x) = 8^x \ln(8)
     \]
   - Derivative of \( v(x) = \ln(x) \):
     \[
     v'(x) = \frac{1}{x}
     \]

4. **Apply the Product Rule**:
   \[
   f'(x) = u'(x) \cdot v(x) + u(x) \cdot v'(x)
   \]
   Substituting \( u(x) \)'s and \( v(x) \)'s derivatives:
   \[
   f'(x) = 8^x \ln(8) \cdot \ln(x) + 8^x \cdot \frac{1}{x}
   \]

5. **Combine Like Terms**:
   \[
   f'(x) = 8^x \ln(8) \ln(x) + \frac{8^x}{x}
   \]

So, the derivative of \( f(x) = 8^x \ln(x) \) is:
\[
f'(x) = 8^x \ln(8) \ln(x) + \frac{8^x}{x}
\]

---
Transcribed Image Text:--- ### Derivative Calculation Exercise #### Problem Statement: Find the derivative of \( f(x) = 8^x \ln(x) \). Use the rules of differentiation to solve this problem. Remember, the \( ln(x) \) represents the natural logarithm of \( x \), which is a common function in calculus. #### Solution: 1. **Identify the Components:** - \( u(x) = 8^x \) - \( v(x) = \ln(x) \) 2. **Apply the Product Rule**: The product rule states that if you have two functions, \( u(x) \) and \( v(x) \), the derivative of their product is: \[ (u(x) \cdot v(x))' = u'(x) \cdot v(x) + u(x) \cdot v'(x) \] 3. **Differentiate Each Function:** - Derivative of \( u(x) = 8^x \): \[ u'(x) = 8^x \ln(8) \] - Derivative of \( v(x) = \ln(x) \): \[ v'(x) = \frac{1}{x} \] 4. **Apply the Product Rule**: \[ f'(x) = u'(x) \cdot v(x) + u(x) \cdot v'(x) \] Substituting \( u(x) \)'s and \( v(x) \)'s derivatives: \[ f'(x) = 8^x \ln(8) \cdot \ln(x) + 8^x \cdot \frac{1}{x} \] 5. **Combine Like Terms**: \[ f'(x) = 8^x \ln(8) \ln(x) + \frac{8^x}{x} \] So, the derivative of \( f(x) = 8^x \ln(x) \) is: \[ f'(x) = 8^x \ln(8) \ln(x) + \frac{8^x}{x} \] ---
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman
Precalculus
Precalculus
Calculus
ISBN:
9780135189405
Author:
Michael Sullivan
Publisher:
PEARSON
Calculus: Early Transcendental Functions
Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning