Question

Find the number of subsets of the set A = {I, 2, 3}. Also write all the subsets of the set A.

Answer 1

A = {1, 2, 3}

Number of elements (n) = 3

Number of subsets = 2^n = 2^3 = 8

Subsets are:-

{ 1, 2, 3}, { }, { 1 }, { 2 }, { 3 }, { 1, 2 } { 2, 3 }, { 3, 1 }

Answer 2

Answer:

the formula used to find all the subsets of a set is

${2}^{n}$

where n = number of elements

$here \: n = 3 \\ so \: {2}^{3} = 8$

subsets = {1},{2},{3},{1,2},{1,3},{2,3},{1,2,3},{ }

I hope it is helpful..................