Sets by Lynne Brady https://padlet.com/lynne_brady/gmsmath2sets Union, Intersection and Complement en-us 2019-04-12 16:27:19 UTC 2020-05-29 19:15:40 UTC hello@padlet.com A universal set for a particular problem is a set which contains all the elements of all the sets in the problem. A universal set is often denoted by a capital U, but sometimes the Greek letter ξ (xee) is used.In this section we will create subsets of a given universal set and use set operations to create new subsets of the universal set. lynne_brady https://padlet.com/lynne_brady/gmsmath2sets/wish/351223709
Complement: The complement of a set A is symbolized by A’ and it is the set of all elements in the universal set that are not in A.

Intersection: The intersection of sets A and B is symbolized by ∩ and is the set containing all of the elements that are common to both set A and set B.

Union: The union of set A and B is symbolized ∪ and is the set containing all the elements that are elements of set A or of set B or that are in both Sets A and B.]]> 2019-04-12 16:29:24 UTC https://padlet.com/lynne_brady/gmsmath2sets/wish/351223709 lynne_brady https://padlet.com/lynne_brady/gmsmath2sets/wish/351225656 2019-04-12 16:34:19 UTC https://padlet.com/lynne_brady/gmsmath2sets/wish/351225656 Let U be a universal set and A and B be subsets of U defined as follows. U = {1,2,3,4,5} A = {1,2,3} B = {2,3,4} lynne_brady https://padlet.com/lynne_brady/gmsmath2sets/wish/351227093 1) Find A’ (A’ is all of the elements in the Universal set that are not in set A.)

2) Find A ∩ B (This is asking me to find all of the elements that A and B have in common.) 

3) Find A ∪ B (This is asking me to list all of the elements in A followed by all of the elements in B, then delete any elements that are written twice.) 


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