Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 01:11Z
\frac{12}{9} \sum_{i=1}^{n} i^{2}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
198K
∫₀^∞ e^(-r²) dr = √π / 2
∑_{k=1}^{n} k = n(n+1)/2
63K
det| 5 3 ; 6 6 | = 12
det| 11 9 ; 5 12 | = 87
366K
det| 9 4 ; 1 10 | = 86
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\frac{2}{2} \sum_{i=1}^{n} i^{2}
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\oint_C \vec{F}\cdot d\vec{r} = 0
319K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
359K
∑_{k=1}^{n} k = n(n+1)/2
263K