ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-18 23:41Z
d/dr [r^8] = 8r^7
∑_{k=1}^{n} k = n(n+1)/2
257K
2β² + 4β + 1 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\binom{n}{k} = \frac{n!}{k!(n-k)!}
437K
det| 9 4 ; 1 10 | = 86
442K
det| 11 3 ; 0 12 | = 132
det| 12 9 ; 5 13 | = 111
231K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\lim_{y\to 0} \frac{\sin y}{y} = 1
479K
det| 1 1 ; 5 2 | = -3
205K
det| 3 4 ; 7 4 | = -16