Question

1. Let u is a set and AB€ U Here A={7,14,21} B = {12 15, 18,21} & U = {7,11,13,14,15,12,16,18,20,21} a) What is the power set of U?​ b)Draw A B C in venn diagram. c)Find (A ∩ B) & A - (A ∩ B) from ven diagram & indicate the area in diagram.​

Answer 1

Answer:

n(AnB)={7,14,21}n{12,15,18,21}

={21}

n(A)- n(AnB)

={7,14,21} - {21}

= {7,14}

question asked (AnB) means to find out the intersection or common between set A and setB

the n(A) - n(AnB) means not common or its helps to fund out only A set becoz in formula there is

n•(A) ( only A set)= n(A) - n(AnB)

i only know this much hope it help u