ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-18 23:43Z
d/dr [r^8] = 8r^7
∑_{k=1}^{n} k = n(n+1)/2
257K
2β² + 4β + 1 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
437K
det| 4 6 ; 0 5 | = 20
442K
det| 11 3 ; 0 12 | = 132
\binom{n}{k} = \frac{n!}{k!(n-k)!}
231K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
202K
det| 7 4 ; 4 8 | = 40
22K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∫₀^∞ e^(-γ²) dγ = √π / 2
det| 3 4 ; 7 4 | = -16
\lim_{β\to 0} \frac{\sin β}{β} = 1