Let set
aequals=startset b comma o comma s endset{b, o, s}.

a) list all the subsets of set a.

b) state which of the subsets in part (a) are not proper subsets of set a.

a) choose the correct answer below.

a.

{},
{bb},

{oo},

{ss},

{bb,

oo},

{bb,

ss},

{oo,

ss},

{bb,

oo,

ss}

b.

{bb},

{oo},

{ss},

{bb,

oo},

{bb,

ss},

{oo,

ss},

{bb,

oo,

ss}

c.

{},
{bb},

{oo},

{ss},

{bb,

oo},

{bb,

ss},

{oo,

ss}

d.

{},
{bb,

oo},

{bb,

ss},

{oo,

bb},

{oo,

ss},

{ss,

bb},

{ss,

oo},

{bb,

oo,

ss}

b) choose the correct answer below.

a.

{bb,

oo,

ss}

b.

{bb},

{oo},

{ss}

c.

{ },
{bb,

oo,

ss}

d.

{ }