Use each of the two reference functionc as in (1) and (2) below and from the Riemann Sum, with the representative numbers x = 2,3,4,5.  (1) f(x) = x2 ex. (2) f(x) = In ((x) -(1)/(x)).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.2: Exponential Functions
Problem 58E
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Use each of the two reference functionc as in (1) and (2) below and from the Riemann Sum, with the representative numbers x = 2,3,4,5. 

  • (1) f(x) = x2 ex.
  • (2) f(x) = In ((x) -(1)/(x)).
Expert Solution
Step 1

Given,

f(x)=x2ex

Now we find the Riemann sum of the given function,

Here, 

x=2,3,4,5

x=1

Riemann sum =R=n=25f(xi)x

 

Step 2

f(x2)x+f(x3)x+f(x4)x+f(x5)xf(2)(1)+f(3)(1)+f(4)(1)+f(5)(1)

f(x)=x2exf(2)=22e2f(2)=4e2f(2)=4(7.3890560989)f(2)=29.5562243956f(2)=29.55

f(x)=x2exf(3)=32e3f(3)=9e3f(3)=9(20.0855369232)f(3)=180.7698323088f(3)=180.76

 

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