Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:13Z
∑_{k=1}^{n} k = n(n+1)/2
\lim_{x\to 0} \frac{\sin x}{x} = 1
465K
∑_{k=1}^{n} k = n(n+1)/2
154K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
60K
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
119K
11θ² + 3θ + 2 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
255K
det| 7 4 ; 4 8 | = 40
173K
det| 7 7 ; 6 8 | = 14
\binom{n}{k} = \frac{n!}{k!(n-k)!}
368K