Example: Let f(x)=x^2-1/x^2+1 The first derivative is shown in the image below.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Example: Let f(x)=x^2-1/x^2+1

The first derivative is shown in the image below.

 

Now, determine the second derivative of the function.
f"(X) =
Determine the sign of the second derivative function as x varies.
Where is f' positive?
Where is f'negative?
Where is f' equal to zero?
What do these qualities of the second derivative tell you about the function?
Transcribed Image Text:Now, determine the second derivative of the function. f"(X) = Determine the sign of the second derivative function as x varies. Where is f' positive? Where is f'negative? Where is f' equal to zero? What do these qualities of the second derivative tell you about the function?
2x (x2 + 1 — х2 + 1)
(x² + 1)2
Transcribed Image Text:2x (x2 + 1 — х2 + 1) (x² + 1)2
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