What does this symbol mean ∩ ?

Question

It's for an algebra problem

If A={-10,-5,0,5,10} and B= {0,1,2,3,4,5,6,7,8,9,10} find A ∩ B...

what does that mean????

Answer 1

The INTERSECTION - where do A and B intersect?

0, 5, 10

Answer 2

It is the intersection of two sets.

In this case where the set A  includes  the numbers -10,-5,0,5 and 10, while B includes the numbers 0,1,2,3,4,5,6,7,8,9 and 10 .

The set A intersects (overlaps with) the set B  in three points , 0, 5 and 10 (A and B share, or have in common these three points, all the others belong to only one set)

In both sets you have 0, 5, and 10 and this is written as :

A ∩ B= {0, 5, 10}

Answer 3

It means intersection of the sets -- the parts / numbers that the two sets (A and B) have in common.

Answer 4

A∩B={0,5,10}   intersect

Answer 5

It means the intersection of two sets. In other words these are the elements that are in set A AND in set B. Common elements one could say.

cheers,

Answer 6

∩ means intersection.

it means the common elements in both the sets.

here,

A∩B={0,5,10}