Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 07:50Z
det| 9 7 ; 5 10 | = 55
∑_{k=1}^{n} k = n(n+1)/2
36K
∇²α = 0
det| 9 3 ; 0 10 | = 90
\binom{n}{k} = \frac{n!}{k!(n-k)!}
240K
\frac{12}{6} \sum_{i=1}^{n} i^{2}
376K
∂t/∂θ = 5t
det| 7 4 ; 4 8 | = 40
139K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 1 5 ; 4 2 | = -18
\frac{4}{6} \sum_{i=1}^{n} i^{2}
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
∑_{k=1}^{n} k = n(n+1)/2