Math Is Fun Forum

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Find B Intersected (A union C)

Let n = intersection of set A and set B.

Let U = union of set A and set C.

Set A = { 1, 3, 5, 8 }

Set B = { 3, 5, 7 }

Set C = { 2, 4, 6, 8 }

Let me see.

I must find A U C first.

A U C = { 1, 3, 5, 8 } U { 2, 4, 6, 8 }

A U C = { 1, 2, 3, 4, 5, 6, 8 }

I now need to find B n (A U C).

B n (A U C) = { 3, 5, 7 } n { 1, 2, 3, 4, 5, 6, 8 }

B n (A U C) = { 3, 5}

You say?

Bob

Administrator

Registered: 2010-06-20

Posts: 10,627

Re: Find B Intersected (A union C)

Correct.
B

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Re: Find B Intersected (A union C)

Correct.
B

It feels good to be right when stepping into unknown math territory. I know that sets is a separate math concept that I think is covered in a course called Discreet Math. Am I right?