ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-18 23:13Z
d/dr [r^8] = 8r^7
2β² + 4β + 1 = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1
159K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
437K
det| 11 3 ; 0 12 | = 132
∑_{k=1}^{n} k = n(n+1)/2
193K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
det| 7 4 ; 4 8 | = 40
202K
∑_{k=1}^{n} k = n(n+1)/2
22K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
205K