Question

Care sunt elementele multimii:
A={x∈N | 7-2x≥√2} ?

Answer 1

$\sqrt{2} \approx 1,41 \\\\\\ 7-2x \geq 1,41 \\\\ -2x \geq 1,41-7 \\\\ -2x \geq -5,59 \ \ \ |:(-2) \\\\ x \leq 2,795 \\\\ x \in N \\\\\\ ===\ \textgreater \ A \in \{0;1;2 \}$