Question

Write the all possible subsets of the following sets.​

Answer 1

From the number of items in the set, the number of subsets can be calculated,

(a) A = {a}

⇒ The subsets of {a} are ϕ and {a}.

(b) B = {a, b}

⇒ The subsets of {a, b} are ϕ, {a}, {b} and {a, b}.

(c) B = {1, 2}

⇒ The subsets of {1, 2} are ϕ, {1}, {2} and {1, 2}.

(d) C = {a, b, c}

⇒ The subsets of {a, b, c} are ϕ {a}, {b}, {c}, {a, b}, {b, c}, {c, a} and {a, b, c}

(e) A = {1, 2, 3}

⇒ The subsets of {1, 2, 3} are ϕ, {1}, {2}, {3}, {1, 2}, {2, 3} {3, 1} and {1, 2, 3}