ref 1994c66d
Math Dump /sym/93f7be
id=15 · host=jp.commstar.world · 2026-10-16 15:02Z
d/dn [n^4] = 4n^3
\frac{7}{4} \sum_{i=1}^{n} i^{2}
191K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
212K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
59K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
18K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∑_{k=1}^{n} k = n(n+1)/2
371K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 2 2 ; 6 3 | = -6
\binom{n}{k} = \frac{n!}{k!(n-k)!}