ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 23:30Z
det| 6 7 ; 2 7 | = 28
d/dz [z^9] = 9z^8
det| 5 7 ; 2 6 | = 16
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
17K
CaCO₃ → CaO + CO₂
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
7z² + 4z + 5 = 0
1β² + 8β + 6 = 0