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Quick Question (Epsilon/Delta Limit Proofs)

  • Thread starter amd123
  • Start date
  • #1
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Homework Statement


[PLAIN]http://img641.imageshack.us/img641/2494/mathg.png [Broken]
I've worked through it and at the 1st step I get:
(1/-e+1)<x<(1/e+1)

How do they have
(1/e+1)<x<(1/-e+1)?

Do you switch the signs of an inequality when you take the inverse of both sides?
 
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Answers and Replies

  • #2
Dick
Science Advisor
Homework Helper
26,258
618
1<2. 1/1>1/2. Yes, you do reverse the inequalities when you invert.
 

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