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
259K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
257K
2β² + 4β + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
159K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 11 3 ; 0 12 | = 132
det| 1 4 ; 3 2 | = -10
231K
det| 7 4 ; 4 8 | = 40
193K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}