Question

A subset of {1,7,8}is;

Answer 1

Answer:

(1), (7), (8), (1, 7), (1, 8), (7, 8), (1, 7,8), (8, 1),( 7,1)

Answer 2

To Find :- A subset of {1,7,8} is ?

Solution :-

we know that, if a sets have n elements , then,

• Total number of subsets are 2^n .

so ,

→ set {1, 7, 8} = 3 elements .

then,

→ Total subsets are = 2³ = 8

and, these subsets will be :-

1. { } = empty set or denoted by ∅ .
2. {1}
3. {7}
4. {8}
5. {1, 7}
6. {1, 8}
7. {7, 8}
8. {1, 7, 8}

therefore, out of these 8 subsets we can write any subset in the answer . { since only 1 subset of set is asked. }

Learn more :-

let a and b positive integers such that 90 less than a+b less than 99 and 0.9 less than a/b less than 0.91. Find ab/46

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