3 years ago

Answer: a. -17 b. -8 c. -2 d. 2 e. 5 f. 8 g. 15

Mathematics

1 answer:

melisa1 [442]3 years ago

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Answer:

Step-by-step explanation:

look at it

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n(A-B) denotes elements which are in A but not in B

n(Au B) denotes elements in A and B

n(AnB) denotes elements that are common in A and B

Now I will add one more set

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n(B-A) = 70-43

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