Question

Determinati n ∈ N* daca:
$| \frac{ n^{2} }{ n^{2} + 1} | \ \textless \ \frac{1}{100}$

Answer 1

Daca n∈N*, modulul o inutil si inegalitatea e ⇔ 100n²<n²+1⇔99n²<1, n∈∅