Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:14Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
60K
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
119K
∑_{k=1}^{n} k = n(n+1)/2
152K
11θ² + 3θ + 2 = 0
det| 4 6 ; 4 5 | = -4
255K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
173K
det| 7 7 ; 6 8 | = 14
\frac{7}{1} \sum_{i=1}^{n} i^{2}
329K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
7ψ² + 4ψ + 3 = 0
2x² + 9x + 3 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
CaCO₃ → CaO + CO₂