if A={0,ø,{ø}}, then find total number of elements in {P(P(A))} - Maths - Sets Relations and Functions

Question

if A={0,ø,{ø}}, then find total
number of elements in {P(P(A))}

Ghanshyam Dhakar · Accepted Answer

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if A={0,ø,{ø}}, then find total number of elements in {P(P(A))}.