SOLUTION: is set A has 3 elements and set B has 4 elements: a. what is the greatest number of elements that A U B can have?explain b. what is the least number of elements the A U B ca

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Question 252266: is set A has 3 elements and set B has 4 elements:
a. what is the greatest number of elements that A U B can have?explain

b. what is the least number of elements the A U B can have? explain

c. what is the greatest number of elements the A n B can have ? explain

d. what is the least number of elements the A n B can have? explain
p.s the (n) is suppose to be an upside down U

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
is set A has 3 elements and set B has 4 elements:
a. what is the greatest number of elements that A U B can have?explain
If A and B are disjoint AUB has 7 elements.
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b. what is the least number of elements the A U B can have? explain
If 3 of the elements are in both A and B AUB has 4 elements.
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c. what is the greatest number of elements the A n B can have ? explain
If A is a subset of B A and B has 3 elements
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d. what is the least number of elements the A n B can have? explain
p.s the (n) is suppose to be an upside down U
If A and B are disjoint then AandB has zero elements.
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Cheers,
Stan H.

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