i) XEIR, {>0, ln² | ( X-E₁ X + {)) : = {y>0] X= { < ln (g E X estreng manation 05 -६ X le.e E e tye e².é, é e е . е e X ee е d.h (2) усё In^ ((X-E₁ X + E)) -EX ६ X ee, ee 11 1151

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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Question

Determine the sum/quantity for x∈R and ε>0 :

 ln^−1((x − ε, x + ε)) := {y > 0 | ln y ∈ (x − ε, x + ε)}.

 

image is the solution: I dont get the transition from 2 to third row.

Can someone explain it to me?

1) XER, { >0, ln^ ( ( X-E₁ X + ε]]: = { y >0] X-{ < &n (g/kx+{}
monoton X-E
X+E
e <e
X-{ < ln (y) < X + { <=>
Astring manation 25
E
(4)
(2)
E
X
-६
X
X
@ 1 X < y < é è @ yε e². e²^₁ e². e²^²
d.h
li (( X - E, X + E)}
EX
-EX
eeee
115
Transcribed Image Text:1) XER, { >0, ln^ ( ( X-E₁ X + ε]]: = { y >0] X-{ < &n (g/kx+{} monoton X-E X+E e <e X-{ < ln (y) < X + { <=> Astring manation 25 E (4) (2) E X -६ X X @ 1 X < y < é è @ yε e². e²^₁ e². e²^² d.h li (( X - E, X + E)} EX -EX eeee 115
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