Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:04Z
4y² + 8y + 1 = 0
∫₀^∞ e^(-x²) dx = √π / 2
468K
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\frac{7}{7} \sum_{i=1}^{n} i^{2}
339K
det| 7 4 ; 4 8 | = 40
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∑_{k=1}^{n} k = n(n+1)/2
358K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
121K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
399K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
11K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
387K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
256K
∑_{k=1}^{n} k = n(n+1)/2
348K