Question

write ( a, b, c, d) write in sub set​

Answer 1

Answer:

hope this picture helps you.. have written this.. now..

please mark as brainliest...

Answer 2

Answer:

sub set of (a, b, c, d) =

(  )empty set, ( a), ( b), ( c), (d), (a, b), ( a, c), (a, d), ( b, a),( b, c),( b, d), ( a, b, c), ( b, c, d), ( a, b, c, d)  

Step-by-step explanation:

empty set is sub set of every set.

every set is a sub set of itself.