Question

A={s,e,t} is a set of letters of the world 'set' write the formula and find the number of subsets of the set A, Find how many subsets are possible? write all the possible subsets of the set A, Which one is the improper subset?​

Answer 1

`\mathrm{The\ number\ of\ subsets\ of\ any\ set\ is\ given\ by\ the\ formula:}\\\mathrm{2^(n), where\ 'n'\ is\ the\ number\ of\ elements\ in\ the\ set.}\\\mathrm{For\ set\ A=s,e,t ,\ n=3.}\\\mathrm{So\ the\ number\ of\ subsets=2^3=8}`

`\mathrm{Possible\ subsets\ of\ A=}` {s,e,t}, {s}, {e}, {t}, {s,e}, {s,t}, {e,t}, {}

{s,e,t}
`\mathrm{is \ the\ improper\ subset.}`