farhan63 farhan63 16-09-2022 Mathematics contestada if a={a,b,c,d,e,h}, b={b,c,d,f,g} and c {a,c,e,f,h,i}, then verify that A) a-(b union c)=(a-b) intersection (a-c) B) a intersection (b-c) =(a intersection b)-(a intersection c)