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}
det| 9 8 ; 3 10 | = 66
60K
∑_{k=1}^{n} k = n(n+1)/2
230K
∑_{k=1}^{n} k = n(n+1)/2
11θ² + 3θ + 2 = 0
\lim_{t\to 0} \frac{\sin t}{t} = 1
255K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
173K
det| 7 4 ; 4 8 | = 40
329K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
180K