Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 03:10Z
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
36K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
269K
10y² + 7y + 7 = 0
CaCO₃ → CaO + CO₂
AgNO₃ + NaCl → AgCl↓ + NaNO₃
240K
∑_{k=1}^{n} k = n(n+1)/2
376K
10y² + 4y + 6 = 0
det| 4 4 ; 5 5 | = 0
139K
det| 7 4 ; 4 8 | = 40
344K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{11}{6} \sum_{i=1}^{n} i^{2}
91K
det| 4 2 ; 3 5 | = 14
201K
λ = h/p
\binom{n}{k} = \frac{n!}{k!(n-k)!}
295K
det| 7 8 ; 2 8 | = 40
\frac{1}{6} \sum_{i=1}^{n} i^{2}