Question

Write down all subsets of sets. (i) A = {2,3} (ii) B={a, b, c}​

Answer 1

We know that number of subsets of any set is 2

n

where n is the number of elements in that set.

Every non-empty set has two subsets ϕ and the set itself.

(i) The subsets of {a} are ϕ and {a}.

(ii) The subsets of {a,b} are ϕ,{a},{b},and{a,b}.

(iii) The subsets of {1,2,3} are ϕ,{1},{2},{3},{1,2},{2,3},{1,3},and{1,2,3}

(iv) The only subset of ϕ is ϕ.

Answer 2

Answer:

mathematics is the abstract science of number quantity either as abstract concepts or as applied to other disciples such as physics and engineering.