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10 lines
357 B
Plaintext
10 lines
357 B
Plaintext
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B '(t)B ''(t) - B ''(t)B '(t)
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x y x y
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\kappa(t) = ─────────────────────────────
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3
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─
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2 2 2
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(B '(t) +B '(t) )
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x y
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