Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-22 04:10Z
\oint_C \vec{F}\cdot d\vec{r} = 0
∑_{k=1}^{n} k = n(n+1)/2
416K
det| 7 4 ; 4 8 | = 40
316K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
Fe₂O₃ + 3CO → 2Fe + 3CO₂
101K
det| 6 8 ; 5 7 | = 2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
417K
ω = 2πf
\binom{n}{k} = \frac{n!}{k!(n-k)!}
109K