3 We can de fine the fallaing tunction on real mumbers ( called "absohite value") ; abs (x) = x if xZ0, and abs (x)=-X if x
3 We can de fine the fallaing tunction on real mumbers ( called "absohite value") ; abs (x) = x if xZ0, and abs (x)=-X if x
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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Need help with this. I did it by proof by cases. But kinda confused on abs stuff
Transcribed Image Text:3 We can de fine the fallaing fruniction on real
mumbers ( called `absohite value)
abs (x) = x if xZ0, and abs (x)=-X if x <O
Prove For a ll real numbers x and Yx
X+abs (x) + abs (xy) = Əx + xY
to
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