Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 23:40Z
det| 12 3 ; 2 13 | = 150
∂y/∂φ = 5y
\frac{3}{2} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
264K
∑_{k=1}^{n} k = n(n+1)/2
276K
∫₀^∞ e^(-n²) dn = √π / 2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
257K
det| 7 4 ; 4 8 | = 40
250K
F = G m₁m₂ / r²
det| 10 5 ; 4 11 | = 90
62K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
256K
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
46K
\frac{2}{6} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}