Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 02:11Z
PV = nRT
\frac{12}{7} \sum_{i=1}^{n} i^{2}
244K
det| 7 2 ; 2 8 | = 52
det| 9 4 ; 1 10 | = 86
91K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
100K
\oint_C \vec{F}\cdot d\vec{r} = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
262K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
196K