Question

-Apply Sets to number and Functions-

Let U be the set of integers from 0 to 10. Find (a) A U B and A ∩ B , (b) A and B, and (c) A x B for the Specified sets A and B
1.) A= {1, 3,5, 7, 9} and B= {3,6,9}
2.) A= {1,2, 3, 4, ,5 ,6 } and B={4, ,5 ,6 ,7 ,8}
3.) A={0,2,4,6,8,10} And B= {1,3,5,7,9}
4.) A= {0,5,10} and B= {1,4,7,10}

Could you explain how you got answers? im not sure how to solve these

Answer 1

\[A=\left\{1,3,5,7,9\right\},\]\[B=\left\{3,6,9\right\}.\]
\[A\cup B=\left\{1,3,5,6,7,9\right\},\]\[A\cap B=\left\{3,9\right\}.\]
What do you mean with "A and B"?

Answer 2

I dunno i just copied what was in my Text book :/ ill check for you

Answer 3

are those answers for Questions 1 and 2 ?

Answer 4

it doesnt tell me what A and b means lol, says somthing about Union and InterSection? if im not mistaken

Answer 5

does that mean anythin to you?

Answer 6

A and B are sets.

The union of two sets A and B is always the "sum," so to speak, of all their elements where those who repeat are left out. For example,

A = {1,3,5,7,9},
B = {3,6,9},
A∪B = {1,3,5,6,7,9}

The intersection of two sets A and B is always the elements common to both sets A and B. That is, only the elements which are in both sets are in their intersection. For example,

A = {1,3,5,7,9},
B = {3,6,9},
A∩B = {3,9}.

The cartesian product of two sets A and B is the total number of combinations in between the elements of both sets. For example,

A = {1,3,5,7,9},
B = {3,6,9},
A×B = {(1,3),(1,6),(1,9),(3,3),(3,6),(3,9),(5,3),(5,6),(5,9),(7,3),(7,6),(7,9),(9,3),(9,6),(9,9)}

Answer 7

could you # them i dont kno what those are are to whcihc of my Questions? so sorry :/

Answer 8

What I just wrote up there is the general procedure to solve all of these problems.

Answer 9

When is this due? I need to head out in a little, but I will be back soon.

Answer 10

tommarrow ^^, but ill be on for 5 ish ours on FB so go out and Parrty ill be on for a while

Answer 11

haha ^