Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 03:23Z
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 9 4 ; 1 10 | = 86
269K
10y² + 7y + 7 = 0
∑_{k=1}^{n} k = n(n+1)/2
158K
CaCO₃ → CaO + CO₂
\frac{3}{2} \sum_{i=1}^{n} i^{2}
240K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
376K
10y² + 4y + 6 = 0
det| 9 9 ; 5 10 | = 45
344K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
91K