Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 03:21Z
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
10y² + 7y + 7 = 0
det| 12 9 ; 5 13 | = 111
131K
det| 3 6 ; 0 4 | = 12
158K
CaCO₃ → CaO + CO₂
Fe₂O₃ + 3CO → 2Fe + 3CO₂
376K
10y² + 4y + 6 = 0
∑_{k=1}^{n} k = n(n+1)/2
139K
\binom{n}{k} = \frac{n!}{k!(n-k)!}