Question

if = { 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 }
A = { 1 , 2 , 4 ,5 }
B = { 4 , 7 , 8 }
find = n((A - B)')
n((A U B)')​

Answer 1

Answer:

Your answer will be 7

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