Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 01:00Z
\frac{12}{9} \sum_{i=1}^{n} i^{2}
∫₀^∞ e^(-r²) dr = √π / 2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
155K
det| 5 3 ; 6 6 | = 12
det| 7 4 ; 4 8 | = 40
366K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
201K
F = ma
\binom{n}{k} = \frac{n!}{k!(n-k)!}
176K
∑_{k=1}^{n} k = n(n+1)/2
319K
\lim_{β\to 0} \frac{\sin β}{β} = 1
359K
∑_{k=1}^{n} k = n(n+1)/2
263K