Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 02:11Z
PV = nRT
det| 7 2 ; 2 8 | = 52
∑_{k=1}^{n} k = n(n+1)/2
91K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
Fe₂O₃ + 3CO → 2Fe + 3CO₂
137K
∑_{k=1}^{n} k = n(n+1)/2
197K
∫₀^∞ e^(-φ²) dφ = √π / 2
262K