Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 19:21Z
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\lim_{t\to 0} \frac{\sin t}{t} = 1
479K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
8K
\oint_C \vec{F}\cdot d\vec{r} = 0
∂x/∂γ = 3x
\binom{n}{k} = \frac{n!}{k!(n-k)!}
264K
\oint_C \vec{F}\cdot d\vec{r} = 0
276K
det| 5 2 ; 4 6 | = 22
∑_{k=1}^{n} k = n(n+1)/2
257K
CH₄ + 2O₂ → CO₂ + 2H₂O
250K
det| 5 3 ; 2 6 | = 24
det| 8 5 ; 3 9 | = 57
62K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 7 4 ; 4 8 | = 40
46K
CaCO₃ → CaO + CO₂
F = G m₁m₂ / r²