Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-08-22 11:35Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
142K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 8 2 ; 7 9 | = 58
448K
\lim_{x\to 0} \frac{\sin x}{x} = 1
\frac{12}{7} \sum_{i=1}^{n} i^{2}
167K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
34K
∂θ/∂θ = 1θ
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
356K
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O