Math Dump /sym/6c3138

id=1 · host=fr.findroms.cloud · 2026-10-17 23:34Z

Fe₂O₃ + 3CO → 2Fe + 3CO₂

∑_{k=1}^{n} k = n(n+1)/2

246K

e^{i\pi} + 1 = 0

118K

\binom{n}{k} = \frac{n!}{k!(n-k)!}

d/dt [t^3] = 3t^2

43K

\lim_{t\to 0} \frac{\sin t}{t} = 1

261K

ω = 2πf

∑_{k=1}^{n} k = n(n+1)/2

424K

det| 9 4 ; 1 10 | = 86

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det| 3 1 ; 7 4 | = 5

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∑_{k=1}^{n} k = n(n+1)/2

298K

7r² + 8r + 5 = 0

447K