Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-20 05:58Z
∂r/∂ψ = 3r
\binom{n}{k} = \frac{n!}{k!(n-k)!}
445K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∂ψ/∂φ = 4ψ
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
212K
det| 10 3 ; 5 11 | = 95
det| 9 9 ; 5 10 | = 45
179K
\oint_C \vec{F}\cdot d\vec{r} = 0
405K
\frac{1}{8} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
442K
det| 9 4 ; 1 10 | = 86
42K
∑_{k=1}^{n} k = n(n+1)/2
369K