Respuesta :

a. cardinality means no of elements present in the set.
b. no of proper set = 2^n - 1
c. no of subset = n
2^n = 512
2^n = 2^9
n = 9.
Q. power set:
a. { 3,7,9} = {3,7,9,(3 7),(7 9),(9 3)}

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