Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:00Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
75K
∫₀^∞ e^(-n²) dn = √π / 2
479K
8β² + 2β + 0 = 0
det| 5 6 ; 7 6 | = -12
276K
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
191K
\lim_{r\to 0} \frac{\sin r}{r} = 1
Fe₂O₃ + 3CO → 2Fe + 3CO₂
153K
det| 12 1 ; 1 13 | = 155
N₂ + 3H₂ ⇌ 2NH₃
\frac{2}{2} \sum_{i=1}^{n} i^{2}
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CH₄ + 2O₂ → CO₂ + 2H₂O
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det| 5 5 ; 2 6 | = 20
e^{i\pi} + 1 = 0