Σ index Rxn set 8 Ledger /9 Σ#24 Ledger /3 Ledger /15 Σ#12 Matrix 11 Batch 22 Eq pack 19 Matrix 17 Eq pack 13 Batch 16 Ledger /27 Eq pack 7

Symbolic Index /sym/ea4bfa

id=1 · host=au.commstar.world · 2026-10-20 14:31Z

∑_{k=1}^{n} k = n(n+1)/2

AgNO₃ + NaCl → AgCl↓ + NaNO₃

244K

d/dx [x^5] = 5x^4

52K

det| 12 5 ; 4 13 | = 136

6x² + 7x + 6 = 0

90K

\binom{n}{k} = \frac{n!}{k!(n-k)!}

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

7y² + 7y + 0 = 0

100K

d/dt [t^3] = 3t^2

50K

det| 4 9 ; 7 5 | = -43

det| 9 4 ; 1 10 | = 86

137K

∑_{k=1}^{n} k = n(n+1)/2

197K

det| 1 1 ; 3 2 | = -1

3z² + 5z + 1 = 0

262K

7φ² + 3φ + 6 = 0

196K

det| 12 9 ; 3 13 | = 129

2H₂ + O₂ → 2H₂O

218K

det| 3 8 ; 6 4 | = -36

F = ma

CaCO₃ → CaO + CO₂

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