Can you show how the -x^2 was found in this integral? I dont understand how this was found. I am guessing there is a constant?
Can you show how the -x^2 was found in this integral? I dont understand how this was found. I am guessing there is a constant?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 19E
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Can you show how the -x^2 was found in this
![Var (X)
) = f (x (x) - ² ) ² f(x) dx
-∞0
2
1
1
1
=
- [ (²² - )* 2nd²x - [* (x^² - ² ² - ² ) 2 raz - [ 2x³ - 20² + xdx
x
1
=
2xd
2xdx =
2x³
(x²-x²-1): How was the x² found?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fad6d3522-58fe-4a42-a237-8062bf310251%2F7dcf8925-c69a-4442-943c-666a49d5a04c%2Feeztb8u_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Var (X)
) = f (x (x) - ² ) ² f(x) dx
-∞0
2
1
1
1
=
- [ (²² - )* 2nd²x - [* (x^² - ² ² - ² ) 2 raz - [ 2x³ - 20² + xdx
x
1
=
2xd
2xdx =
2x³
(x²-x²-1): How was the x² found?
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