線形代数学 A 第 10 回演習 略解 1 (1) 2 (2) −16 (3) 5 (4) −7 ( ) 1 2 3 4 5 2 sgn 1 × 2 × 3 × 4 × 5 = sgn(1 2)(4 5) × 120 = 120. 2 1 3 5 4
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