Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 17:29Z
\frac{12}{7} \sum_{i=1}^{n} i^{2}
det| 7 4 ; 4 8 | = 40
479K
det| 2 7 ; 7 3 | = -43
8K
CH₄ + 2O₂ → CO₂ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
276K