Question

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Answer 1

$\underline \color{lightgreen}ANSWER$

a) A = {F, E, D, R}

b) n(A) = 4

c)

${2}^{4} = 16$

Answer 2

Answer:

a)A={F,E,D,R}

b) 4

c) 15

Step-by-step explanation:

a)In Roster Form,

A={F,E,D,R}

b)n(A)=4[From a]

c)Proper Subset=2^n(A)-1

=>2^4-1

=>16-1 =15

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