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i think i found two answers so far
okay which ones u want help with right now
actually maybe just A' and B' . I may be able to figure it out from there
B does not equal 77 though
i wouldnt trust all that addition lol i just did it all in my head so -,- prolly made some mistakes
I know that A U B has to equal 203
but B doesn't equal 77
did you see the picture
the website says its wrong
I don't understand how it isn't 77
they made a mistake just try 87 for B
what about A?
flip it 77 for A and 87 for B
the guy who made the test prolly put the wrong answers
77 doesn't work for A either
ohh lmao all of A oops
could A and B be disjoint?
why did we even get 77 from
i mean 87+39 for A and 77+39 for B
now only two left https://gyazo.com/04f300cc9a4d47126c41d750837b2361
a interset b not is 87
and the other is 77
is n(A∩B′)= |dw:1443069216495:dw|?
so everything not in B?
B' means everything not in B
what part of everything not in B is in A?
39 is in A
87 indicates the part that is only in A
did you try 87
was it wrong ?
sorry thats what I meant
so n(A∩B′)= 87 n(A′∩B)= 77
:D thank you dude so much :D