Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:54Z
∑_{k=1}^{n} k = n(n+1)/2
det| 12 5 ; 4 13 | = 136
det| 7 4 ; 4 8 | = 40
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∫₀^∞ e^(-y²) dy = √π / 2
100K
∑_{k=1}^{n} k = n(n+1)/2
137K
∑_{k=1}^{n} k = n(n+1)/2
197K
det| 2 4 ; 4 3 | = -10
262K