Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 22:04Z
F = G m₁m₂ / r²
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{2}{2} \sum_{i=1}^{n} i^{2}
90K
2H₂ + O₂ → 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
100K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
50K
det| 8 4 ; 0 9 | = 72
\oint_C \vec{F}\cdot d\vec{r} = 0
137K
∑_{k=1}^{n} k = n(n+1)/2
197K
det| 3 1 ; 4 4 | = 8
∑_{k=1}^{n} k = n(n+1)/2
262K
det| 9 4 ; 1 10 | = 86
196K