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I don't know how to start.
@loser66 Can we start with a list of the operations you've learned?
Whatever you use, I am ok.
sorry @Loser66 i haven't a clue about this kind of stuff :(
If you're vague about this, then I assume you know at least union, intersection, difference, and complement, right?
It's ok, friend, neither I.
Do you know how to find |A\(\cap\)B| in terms of A and B, using the above operators?
yes, I do. But first off, I need you to define what are set A and B, please
Since the problem has 2 parts, operation and word problem. We can go backward by defining the sets first and then work on it, right?
The same as in your question, i.e. with cardinalities a and b. But we don't use them for now. Is that ok?
Actually, I was planning to use a+b = |A|+|B|=|A\(\cap\)B|+|A\(\cup\)B|, and similarly a-b, but then it's not a set, which is what the question asks. Perhaps @ganeshie8 has a better idea.
I have to go for work now. I will be back after work. If you have any idea, please guide me. I will take it later. Much appreciate.
Well never mind...
Are the sets disjoint?
Hold on, I'll post a pic of my work.
@Kainui or @mukushla Question about sets maybe you might be able to help with.