Loser66
  • Loser66
Starting with 2 sets A and B of respective cardinalities a and b, use all operations on sets that you have learnt: 1) to construct sets whose cardinalities are the following 2) to construct word-problems whose solutions require counting the numbers of the sets you first constructed a) (b+a)(b-a) b) b^{a+b} Please, help.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Loser66
  • Loser66
I don't know how to start.
Loser66
  • Loser66
@mathmate
Loser66
  • Loser66
@IrishBoy123

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More answers

mathmate
  • mathmate
@loser66 Can we start with a list of the operations you've learned?
Loser66
  • Loser66
yes, sir
Loser66
  • Loser66
Whatever you use, I am ok.
IrishBoy123
  • IrishBoy123
sorry @Loser66 i haven't a clue about this kind of stuff :(
mathmate
  • mathmate
If you're vague about this, then I assume you know at least union, intersection, difference, and complement, right?
Loser66
  • Loser66
It's ok, friend, neither I.
Loser66
  • Loser66
yes
mathmate
  • mathmate
Do you know how to find |A\(\cap\)B| in terms of A and B, using the above operators?
Loser66
  • Loser66
yes, I do. But first off, I need you to define what are set A and B, please
Loser66
  • Loser66
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?
mathmate
  • mathmate
The same as in your question, i.e. with cardinalities a and b. But we don't use them for now. Is that ok?
mathmate
  • mathmate
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.
Loser66
  • Loser66
|dw:1434458366736:dw|
Loser66
  • Loser66
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.
ParthKohli
  • ParthKohli
Well never mind...
ParthKohli
  • ParthKohli
Are the sets disjoint?
ParthKohli
  • ParthKohli
Hold on, I'll post a pic of my work.
freckles
  • freckles
@Kainui or @mukushla Question about sets maybe you might be able to help with.

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