# Can you draw its graph ? -1

Algebra Level 5

$$A \equiv \{x \in \mathbb{R} \ | \ x^2-4x+\lfloor{x}\rfloor+3=0\}$$, then what is $$n(P(P(A)))$$ ?

Details:

$$n(P(P(A)))$$ here means number of elements in the Power Set of the Power Set set A.

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