Find f '(a). 5t + 11 f(t) t + 8 Step 1 To find f '(a), we will use the formula = lim t) – f(a) f '(a) 5t + 11 Since f(t) we have t + 8 5t + 11 5a + 11 f '(a) lim t + 8 a + 8 %D Putting the fractions in the numerator over a common denominator and simplifying, we have || (5t + 11) (5a + 11)(t + 8) 5t + 11 5a + 11 t + 8 a + 8 (t + 8)(a + 8) 5ta + 11a + 40t + 88 – 5at (t + 8)(a + 8) - 11t – 40a – 88 )e-( la (t + 8)(a + 8)

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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Find f '(a).
5t + 11
f(t)
t + 8
Step 1
To find f '(a), we will use the formula
= lim t) – f(a)
f '(a)
5t + 11
Since f(t)
we have
t + 8
5t + 11
5a + 11
f '(a)
lim
t + 8
a + 8
%D
Putting the fractions in the numerator over a common denominator and simplifying, we have
||
(5t + 11)
(5a + 11)(t + 8)
5t + 11
5a + 11
t + 8
a + 8
(t + 8)(a + 8)
5ta + 11a + 40t + 88 – 5at
(t + 8)(a + 8)
- 11t – 40a – 88
)e-(
la
(t + 8)(a + 8)
Transcribed Image Text:Find f '(a). 5t + 11 f(t) t + 8 Step 1 To find f '(a), we will use the formula = lim t) – f(a) f '(a) 5t + 11 Since f(t) we have t + 8 5t + 11 5a + 11 f '(a) lim t + 8 a + 8 %D Putting the fractions in the numerator over a common denominator and simplifying, we have || (5t + 11) (5a + 11)(t + 8) 5t + 11 5a + 11 t + 8 a + 8 (t + 8)(a + 8) 5ta + 11a + 40t + 88 – 5at (t + 8)(a + 8) - 11t – 40a – 88 )e-( la (t + 8)(a + 8)
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