Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:58Z
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
154K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
\frac{4}{6} \sum_{i=1}^{n} i^{2}
60K
∑_{k=1}^{n} k = n(n+1)/2
230K
∑_{k=1}^{n} k = n(n+1)/2
det| 10 2 ; 1 11 | = 108
119K
11θ² + 3θ + 2 = 0
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
255K
det| 4 6 ; 4 5 | = -4
173K
det| 7 7 ; 6 8 | = 14
\binom{n}{k} = \frac{n!}{k!(n-k)!}
329K
7ψ² + 4ψ + 3 = 0
2x² + 9x + 3 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃