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...
Related questions
Question
3.6-Number 50, please

Transcribed Image Text:# Differentiation Rules
## Problems and Exercises:
### 43.
Given the function \( f(x) = cx + \ln (\cos \, x) \), find the value of \( c \) for which \( f'(\pi/4) = 6 \).
**Answer**:
### 44.
Let \( f(x) = \log_8 (3x^2 - 2) \). Determine the value of \( b \) for which \( f'(1) = 3 \).
**Answer**:
### 45-56.
Use logarithmic differentiation to find the derivative of the function.
45. \( y = (x^2 + 2)^{2} (x^4 + 4)^{4} \)
**Answer**:
46. \( y = \frac{e^{-x} \cos^2 x}{x^2 + x + 1} \)
47. \( y = \sqrt{\frac{x - 1}{x^4 + 1}} \)
**Answer**:
48. \( y = \sqrt{x e^{x^2 - x} (x + 1)^{2/3}} \)
49. \( y = x^x \)
**Answer**:
50. \( y = x^{1/x} \)
**Answer**:
These exercises involve applying various differentiation techniques, particularly focusing on logarithmic differentiation, to find derivatives of complex functions.
Expert Solution

Step 1
To find : Derivative of the function
Take logarithm to both sides, we get
…..(1)
Step by step
Solved in 2 steps

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