Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-22 19:03Z
\lim_{y\to 0} \frac{\sin y}{y} = 1
Fe₂O₃ + 3CO → 2Fe + 3CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
101K
\frac{3}{7} \sum_{i=1}^{n} i^{2}
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
417K
\lim_{x\to 0} \frac{\sin x}{x} = 1
366K
ω = 2πf
\binom{n}{k} = \frac{n!}{k!(n-k)!}
109K
det| 5 6 ; 4 6 | = 6
466K
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
153K
∑_{k=1}^{n} k = n(n+1)/2
267K