Question

Consider this set A={B E S T} how many subsets does it have?

Answer 1

Answer:

16 is your correct answer.

Answer 2

$Given \: set \: A = \{ B , E , S , T \}$

$Number \: of \: elements \: in \: set \: A \\= n(A) = 4$

$Number \: of \: subsets = 2^{n(A)} \\= 2^{4} \\= 16$

They are {B},{E},{S},{T},{B,E},{B,S},{B,T},{E,S},{E,T},{S,T}

{B,E,S},{B,S,T},{E,S,T}, {B,E,T} ,{B,E,S,T} , { }

•••♪