A = {1, 3, 5, 7, 9}
B = {2, 4, 6, 8, 10}
C = {1, 5, 6, 7, 9}
A ∩ (B ∩ C) =

{1, 3, 5, 6, 7, 9}

{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

{ }

Question

A = {1, 3, 5, 7, 9}
B = {2, 4, 6, 8, 10}
C = {1, 5, 6, 7, 9}
A ∩ (B ∩ C) =



{1, 3, 5, 6, 7, 9}

{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

{ }

anonymous · Answer

@ganeshie8

anonymous · Answer

Would it be {1, 3, 5, 6, 7, 9} ?

sleepyjess · Answer

What numbers are in both B and C?

anonymous · Answer

6 is what they both have in common

sleepyjess · Answer

Ok, now is 6 in set A?

anonymous · Answer

No ma'am

sleepyjess · Answer

Ok, so the answer would be none.

sleepyjess · Answer

You don't have to call me ma'am xD

anonymous · Answer

Oh my God, could this stuff get any more complicated and confusing? Ahhhh

eyust707 · Answer

hahaha let me help you out for one second

eyust707 · Answer

|dw:1421389845398:dw|

eyust707 · Answer

that symbol looks like a U it is called a union

anonymous · Answer

Yes, I know that.

eyust707 · Answer

it means that you should combine ( and make one) the two sets of numbers

eyust707 · Answer

|dw:1421389922186:dw|that is an intersection and it means you should only consider the numbers that the two sets have in common

sleepyjess · Answer

Intersection is the numbers that are in both sets. For example set A {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Set B {2, 4, 6, 8, 10}. A intersection B is {2, 4, 6, 8, 10} because those are the numbers that are in both sets.

sleepyjess · Answer

Now, say we want A union B for those sets, that would be {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, because that is the sets combined.

sleepyjess · Answer

Hopefully that helps some?

anonymous · Answer

Thank you so much. I appreciate it:) I have two more questions if you don't mind?

anonymous · Answer

I'll open in a new post

sleepyjess · Answer

Sure, could you open them in a new question though?