Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 17:16Z
d/dθ [θ^5] = 5θ^4
\frac{2}{4} \sum_{i=1}^{n} i^{2}
det| 7 7 ; 4 8 | = 28
144K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
371K
d/dr [r^4] = 4r^3
det| 9 4 ; 1 10 | = 86
86K
7α² + 1α + 1 = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
224K
∑_{k=1}^{n} k = n(n+1)/2
234K
det| 12 3 ; 1 13 | = 153
det| 2 3 ; 5 3 | = -9
218K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
354K
∂n/∂β = 5n
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 5 5 ; 2 6 | = 20