Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-20 05:37Z
∂r/∂ψ = 3r
\binom{n}{k} = \frac{n!}{k!(n-k)!}
445K
det| 7 4 ; 4 8 | = 40
193K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
322K
∂ψ/∂φ = 4ψ
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
212K
∑_{k=1}^{n} k = n(n+1)/2
362K
det| 10 3 ; 5 11 | = 95
\frac{1}{8} \sum_{i=1}^{n} i^{2}