Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:13Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
465K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
154K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
60K
∫₀^∞ e^(-φ²) dφ = √π / 2
230K
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
152K
11θ² + 3θ + 2 = 0
\frac{7}{1} \sum_{i=1}^{n} i^{2}
255K
det| 7 7 ; 6 8 | = 14
\lim_{t\to 0} \frac{\sin t}{t} = 1
329K
\lim_{α\to 0} \frac{\sin α}{α} = 1
368K
7ψ² + 4ψ + 3 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
314K
2x² + 9x + 3 = 0