Determine the value of the integral: integral sign:  (x)(e^-x)

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.
Chapter7: Integration
Section7.3: Area And The Definite Integral
Problem 1E: Explain the difference between an indefinite integral and a definite integral.
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Determine the value of the integral:

integral sign:  (x)(e^-x)

Expert Solution
Step 1

Recall the formula for integration by parts:

Calculus homework question answer, step 1, image 1

Step 2

Here, udv = xe-xdx

so, u = x and dv = e-xdx which gives on integration, v = -e-x

 

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ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,