Question

If A ⊂ B, then A ∩ B = A ∪ B.



always

sometimes

never

Answer 1

@Mimi_x3

Answer 2

it might help to draw a picture

A ⊂ B means we have all of set A inside set B



set B is the rectangle and set A is the oval

Answer 3

using the picture, what does A ∩ B turn into?

Answer 4

I completely forgot what the symbols mean

Answer 5

A ∩ B means "A intersect B"

does that sound familiar?

Answer 6

refresh the page if you see a bunch of boxes instead of the symbol

Answer 7

I know there's intersect and union but I forget which one is which

Answer 8

think of a venn diagram with sets A and B