Let f(x)= [(x+4)^5(4x-1)/(6x+3)^5]^1/6 Use logarithmic differentiation to find the derivative of f. f ' (x)= f (x) [A/(x+4)+B/(4x-1)+C/(6x+3)], where  A=______ B=______ C=______

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter3: The Derivative
Section3.CR: Chapter 3 Review
Problem 59CR
icon
Related questions
Question
100%

Let f(x)= [(x+4)^5(4x-1)/(6x+3)^5]^1/6

Use logarithmic differentiation to find the derivative of f.

f ' (x)= f (x) [A/(x+4)+B/(4x-1)+C/(6x+3)], where 

A=______

B=______

C=______

Expert Solution
Step 1

The given function is

(x +4)(4x-1)
(6x+3)
f (x)=
Step 2

Take ln on both sides and differentiate as shown below:

[(&+4) (4x-1)
(6x+3)
(x+ 4) (4x-)
(6x+3)
In f(x) In
1
(n xan>
In f(x) n
6
n f(x) 5n (x+4)+ In(4x-1)-5ln(6x+ 3)
In (x+y)nxy,In(x +y)In-
1
f'(x)
5
4
-5
6 x+4
бх + 3
4х-1
5
4
5
6
6
f'(x) f(x)
X +4
4х-1
бх + 3
steps

Step by step

Solved in 3 steps with 3 images

Blurred answer