This Blog exists for the collective benefit of ALL Algebra students. While the posts are usually specific to Mr. Chamberlain's class, any and all "algebra-ticians" are welcome. The more specific your question (including your own attempts to answer it) the better.

Monday, November 21, 2016

hw #3-R1 Chapter 3 Review

hw #3-R1 Chapter 3 Review

Chapter 3 Test will be Friday Dec 2nd(A) and Monday Dec 5th(B)

due Monday 11/28(A); Tuesday 11/29(B)

pg 222-226

#1-5 ALL, #6-36 Multiples of 3 (i.e. 6,9,12,...,36),

I dont understand how to do #41. It says, "Suppose U={1,2,3,4,5,6,7,8} and B={2,4,6,8}. What is B?" I started to list the subsets, in single-{2}, {4}, etc., and double-{4,6}, {6,8}etc. but I dont know if I am doing it correctly/how to do it.

Set B resides within the Universal Set U. B' (read as B complement) is simply the set of elements that, when combined with set B, make up the universal set.

So, we simply compare Set B with the Universal Set and find any elements that aren't in Set B.

So, B' = {1,3,5,7}

The UNION of Set B & and Set B' is the Universal Set.

I dont understand how to do #41. It says, "Suppose U={1,2,3,4,5,6,7,8} and B={2,4,6,8}. What is B?" I started to list the subsets, in single-{2}, {4}, etc., and double-{4,6}, {6,8}etc. but I dont know if I am doing it correctly/how to do it.

ReplyDeleteSet B resides within the Universal Set U. B' (read as B complement) is simply the set of elements that, when combined with set B, make up the universal set.

DeleteSo, we simply compare Set B with the Universal Set and find any elements that aren't in Set B.

So, B' = {1,3,5,7}

The UNION of Set B & and Set B' is the Universal Set.