Question

10. Let n[P(A)] = 512 . Find the
a) cardinality of A
b) number of proper subsets of A
c) number of subsets of A having exactly two elements​

Answer 1

Answer:

b) number of subsets pf A having exactly two elements

Answer 2

Step-by-step explanation:

a no of element = 512

cardinality of A =9 (2 raise to 9 = 512)

b no of proper subset = 512 -1 =511

c. (9×8 )÷(1×2)= 36