Section outline
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Repetition on elementary algebra (2.1-2.5)
Suggested exercises:
2.2: 1, 4, 8, 13, 14 pp. 31-32
2.3: 1, 3, 5, 11 pp. 36-37
2.4: 1, 2, 3, 4, 6 p. 41-42
2.5: 1, 2, 4, 8, 10, 13 p. 46-47
2.11: 1
(the section 2 from the 6th and 5th edition is section 1 in the 4th. If you have the 4th edition, replace 2.# with 1.# and don't rely on the above page indications). The pages of the exercises refers to the 6th edition, which are different from earlier editions.
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Try and see how much you remember from your Matte 3. We are going to re-cover some of these topic, so do not panic if this seems impossible. But... it is good to be aware of a problem before it get out of control.