Question

8./ Let A be the set of letters in the word, 'food. Find
(1) A
(ii) n(A)
(iii) number of subsets of A.
(iv) number of proper subsets of A.

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Answer 1

Step-by-step explanation:

Answer

A={1,2,{3,4}}

Number of elements in A,n=3.

Total number of subsets of A=2

n

=2

3

=8.

Except for set A and null set, all other sets are proper sets.

Hence number of proper subsets =8−2=6.

for example.