Answer:
C.
A= {},{a},{b},{c},{a,b},{b,c},{a,c}
B= {∅}, {∅}⊈{{∅}}
B= {}, {3}, {6}, {9}, {12} {15}, {3,6}, {3,9}, {3,12}, {3,15},{6,9}, {6,12},{6,15} {9,12},{9,15},{3,6,9}, {3,6,12},{3,6,15}, {3,9,12},{3,9,15} {6,9,12}, {6,9,15} and {3,6,9,12,15}.
Step-by-step explanation:
sorry I can't answer the other's T_T
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Answers & Comments
Answer:
C.
A= {},{a},{b},{c},{a,b},{b,c},{a,c}
B= {∅}, {∅}⊈{{∅}}
B= {}, {3}, {6}, {9}, {12} {15}, {3,6}, {3,9}, {3,12}, {3,15},{6,9}, {6,12},{6,15} {9,12},{9,15},{3,6,9}, {3,6,12},{3,6,15}, {3,9,12},{3,9,15} {6,9,12}, {6,9,15} and {3,6,9,12,15}.
Step-by-step explanation:
sorry I can't answer the other's T_T