Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 01:31Z
∑_{k=1}^{n} k = n(n+1)/2
det| 6 6 ; 3 7 | = 24
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3β² + 6β + 2 = 0
det| 3 1 ; 7 4 | = 5
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∑_{k=1}^{n} k = n(n+1)/2
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F = ma
det| 9 4 ; 1 10 | = 86
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\frac{8}{7} \sum_{i=1}^{n} i^{2}
det| 3 6 ; 0 4 | = 12
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