Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 06:01Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
8K
det| 5 9 ; 4 6 | = -6
det| 8 5 ; 3 9 | = 57
102K
∫₀^∞ e^(-n²) dn = √π / 2
57K
F = G m₁m₂ / r²
det| 2 4 ; 4 3 | = -10
264K
9ω² + 3ω + 5 = 0
∑_{k=1}^{n} k = n(n+1)/2
257K
9θ² + 8θ + 7 = 0
∑_{k=1}^{n} k = n(n+1)/2
62K
det| 9 4 ; 1 10 | = 86
256K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 4 2 ; 2 5 | = 16
CaCO₃ → CaO + CO₂
∫₀^∞ e^(-θ²) dθ = √π / 2