Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:38Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
244K
det| 12 5 ; 4 13 | = 136
det| 7 4 ; 4 8 | = 40
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
50K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
137K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
262K
∫₀^∞ e^(-t²) dt = √π / 2
196K
∑_{k=1}^{n} k = n(n+1)/2
218K