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Monday, September 13, 2010

Tyler, September 10

On Friday we talked about and took notes on additive inverse, set notation, and distributive property (JoJo's favorite property). Then, as a class, we went over the homework for that day which was 1.4 1-59 odds. Here are some additive inverse, set notation problems, and rules we discussed.

additive inverse
if a=-1 then |-1|= -a 

set notation
x= { 2, 4, 6, 8 ...} open set
x= { 2 ,4, 6, 8 ...298}

The product of two numbers with the same sign is positive

The product of two number with different signs is negative

The reciprocal of a non zero number is 1 over the number. (ex. a= 1/a )

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