Today in math studies class we talked about sets of numbers! A regular u equals a union, which is a set of all the numbers in both sets, and in which the numbers that are repeated more than ones is only written once. The opposite u equals a intersect, which is a set of only the numbers that are repeated in the sets. We also learned that when dealing with sets the {, is always used in the begging and in the ending of the sets. We also learned that:
A= {set of all even integers}
B= { set of all rational numbers}
N*= {1,2,3.........}
N= {0,1,2,3.......}
Z={-4, -3,-2,-1,0,1,2,3.......}
Z+= N*
Q= { rational numbers is any number b/c where b,c are elements of z and c is not equal to 0}
R= { all real numbers which is the set of all rational and unrational numbers..
Before talking about sets, in class we were discussing the issue that mostly all the people in the class were struggling to sign up for the blog, and ms. sullivan explained how to do it.
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