Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:12Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{3}{2} \sum_{i=1}^{n} i^{2}
154K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
det| 7 4 ; 4 8 | = 40
230K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
119K
11θ² + 3θ + 2 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
173K
det| 7 7 ; 6 8 | = 14
∑_{k=1}^{n} k = n(n+1)/2
329K
7ψ² + 4ψ + 3 = 0
2x² + 9x + 3 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
CaCO₃ → CaO + CO₂