Cardinality Of Inequations!

Algebra Level 3

Let A={x:xR,x240}A = \{x:x \in \mathbb R, x^2 - 4\geq 0\} and B={y:yR{0},4y210}B = \{y:y \in \mathbb R - \{0\}, 4y^2 - 1 \leq 0\}.

Also, denote X|X| as the cardinality of the set XX, then which of the statements is true?


All of my problems are original.
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