Set A = {factors of 72}
set B ={multiples of 3 less than 20}
set C ={prime numbers less than 30}
find i. A n B n C
ii. A n B

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?