Symbolic Index /sym/7351be
id=9 · host=au.commstar.world · 2026-08-18 22:13Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
240K
F = ma
det| 8 2 ; 7 9 | = 58
376K
det| 2 3 ; 3 3 | = -3
\frac{12}{7} \sum_{i=1}^{n} i^{2}
82K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
142K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
191K
F = G m₁m₂ / r²
ΔS ≥ 0