Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 08:10Z
10t² + 7t + 4 = 0
∑_{k=1}^{n} k = n(n+1)/2
326K
∑_{k=1}^{n} k = n(n+1)/2
198K
d/dα [α^9] = 9α^8
∑_{k=1}^{n} k = n(n+1)/2
155K
det| 8 7 ; 2 9 | = 58
∂β/∂n = 6β
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 7 4 ; 4 8 | = 40
263K
8r² + 7r + 1 = 0
e^{i\pi} + 1 = 0
CaCO₃ → CaO + CO₂
ΔS ≥ 0