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8.3.3 EXERCISE Prove the following facts. 1. 1 R+ and-1 in R-. 2. If a e...

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8.3.3 EXERCISE Prove the following facts.1. 1 R+ and-1 in R-. 2. If a e R+, then R+, and if a R-, then E R-. We said in Section 8.2 that once we have the concept of t

8.3.3 EXERCISE Prove the following facts.
1. 1 R+ and-1 in R-. 2. If a e R+, then R+, and if a R-, then E R-. We said in Section 8.2 that once we have the concept of the positive numbers we can define an order on R.

Answers

Soluton peveand in an d -lin .8 2Sin Ca le on tte leRt haud side of t numb line f Sine ene. aeat tae meaus cus co n.ata dicho

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