Question

решите неравенства
помогитеее
1) n² — (n+1)²>2;
2) (1 – t)² = t² > 3;​

Answer 1

$n {}^{2} - (n + 1) {}^{2} > 2 \\ n {}^{2} - n {}^{2} - 2n - 1 > 2 \\ - 2n - 1 > 2 \\ - 2n > 3 \\ n < - \frac{3}{2}$

$(1 - t {}^{2} ) = t {}^{2} > 3 \\ t {}^{2} - 2t + 1 = t {}^{2} > 3$