Let P(X) denote power set of a set X. If A is the null set,... — Quantitative Ability 2022

Question 225 Quantitative Ability 2022 Medium NAT +4.00 marks

Let P(X) denote power set of a set X. If A is the null set, then the number of elements in P(P(P(P(A)))) is _____________.

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