Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 03:14Z
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
10y² + 7y + 7 = 0
det| 4 6 ; 4 5 | = -4
131K
CaCO₃ → CaO + CO₂
det| 6 4 ; 4 7 | = 26
240K
10y² + 4y + 6 = 0
∑_{k=1}^{n} k = n(n+1)/2
139K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 5 6 ; 1 6 | = 24
91K