展开 (1,2,1-i)(1,i,0)

解答

展开

(1, 2, 1 - i) (1, i, 0)

1 \cdot (1 \cdot 0 i,,), 2, 1 - i (1 \cdot 0 i,,)

求解步骤

(1, 2, 1 - i) (1, i, 0)

= (1 \cdot 2 \cdot 1,, - i) (1 \cdot 0 i,,)

使用分配律:

a (b - c) = ab - a c

a = (1, i, 0), b = 1, 2, 1, c = i

= (1, i, 0) \cdot 1, 2, 1 - (1, i, 0) i

= 1 \cdot (1 \cdot 0 i,,), 2, 1 - i (1 \cdot 0 i,,)

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