Answered

Let ∪ ={1,2,3,…,12} be the universal set, and A={ 10,11,12},B={1,3,5,7,9,11},and
C={4,5,…,11}. What is A∩B∩C?

Sagot :

The common element to all sets is 11
the answer is {11}
Rubysheenid
A={10,11,12},  
B={1,3,5,7,9,11},  
C={4,5,6,7,8,9,10,11} 
={5,7,9,11}