5.2 logarithmic en(4t+1Det

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...
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Logarithmic differentiation
### Topic: Logarithmic Differentiation

The expression shown in the image is a derivative with respect to \( t \):

\[
\frac{d}{dt}\left(\frac{(t^2 \sec(t^3) 3^t)}{\ln(4t+1) e^t}\right)
\]

#### Breakdown of the Expression:

- **Numerator**: 
  - \( t^2 \): This represents a polynomial function of \( t \).
  - \( \sec(t^3) \): The secant function taken with an argument of \( t^3 \).
  - \( 3^t \): An exponential function with base 3.

- **Denominator**:
  - \( \ln(4t+1) \): The natural logarithm of \( 4t + 1 \).
  - \( e^t \): The exponential function with base \( e \).

#### Explanation:

This expression involves differentiating a quotient of two complex functions. To effectively differentiate it, consider using logarithmic differentiation, especially because the expression includes both exponential and trigonometric functions that might benefit from simplification through logarithms.

1. **Logarithmic Differentiation** involves:
   - Taking the natural log on both sides of the equation to utilize properties of logarithms to simplify the differentiation process.
   - Differentiating using product, quotient, and chain rules accordingly.

This approach allows for easier handling of the multiple products and ratios within the function.

Keep in mind that in real-world educational scenarios, breaking down the problem into parts, using derivative rules effectively, and simplifying step-by-step can aid significantly in understanding complex derivatives like this one.
Transcribed Image Text:### Topic: Logarithmic Differentiation The expression shown in the image is a derivative with respect to \( t \): \[ \frac{d}{dt}\left(\frac{(t^2 \sec(t^3) 3^t)}{\ln(4t+1) e^t}\right) \] #### Breakdown of the Expression: - **Numerator**: - \( t^2 \): This represents a polynomial function of \( t \). - \( \sec(t^3) \): The secant function taken with an argument of \( t^3 \). - \( 3^t \): An exponential function with base 3. - **Denominator**: - \( \ln(4t+1) \): The natural logarithm of \( 4t + 1 \). - \( e^t \): The exponential function with base \( e \). #### Explanation: This expression involves differentiating a quotient of two complex functions. To effectively differentiate it, consider using logarithmic differentiation, especially because the expression includes both exponential and trigonometric functions that might benefit from simplification through logarithms. 1. **Logarithmic Differentiation** involves: - Taking the natural log on both sides of the equation to utilize properties of logarithms to simplify the differentiation process. - Differentiating using product, quotient, and chain rules accordingly. This approach allows for easier handling of the multiple products and ratios within the function. Keep in mind that in real-world educational scenarios, breaking down the problem into parts, using derivative rules effectively, and simplifying step-by-step can aid significantly in understanding complex derivatives like this one.
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