Question

if A=[x:x is a prime number less than 20] and B=[x:x is a whole number less than 10 then verify n(A union B)=n(A)+n(B)-..........can anyone help me to solve this problem please..........​

Answer 1

Step-by-step explanation:

A={2,3,5,7,11,13,17,19} ; B={0,1,2,3,4,5,6,7,8,9} ;AUB={0,1,2,3,4,5,6,7,8,9,11,13,17,19} ; A intersection B={2,3,5,7} ; n(A)=8 ,n(B)=10 , n(AUB)= 14, n(A intersection B)=4 ; n(AUB)= n(A)+n(B)-n(A intersectionB) ; 14=8+10-4 ;14=14,,; Hence verified