Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 18:01Z
9n² + 9n + 6 = 0
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
131K
det| 10 3 ; 4 11 | = 98
158K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 4 ; 1 10 | = 86
240K
ΔS ≥ 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
139K
∑_{k=1}^{n} k = n(n+1)/2
344K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
91K
\frac{12}{6} \sum_{i=1}^{n} i^{2}
201K