展开 (2,4,3)x(0,-1,-1)

解答

展开

(2, 4, 3) x (0, - 1, - 1)

0 \cdot (2 \cdot 4 \cdot 3,,) x, - 1 \cdot (2 \cdot 4 \cdot 3,,) x, - 1 \cdot (2 \cdot 4 \cdot 3,,) x

求解步骤

(2, 4, 3) x (0, - 1, - 1)

= (2 \cdot 4 \cdot 3,,) (0, - 1, - 1) x

打开括号

= (2, 4, 3) x \cdot 0, (2, 4, 3) x (- 1,) + (2, 4, 3) x (- 1)

使用加减运算法则

+ (- a) = - a

= 0 \cdot (2 \cdot 4 \cdot 3,,) x, - 1 \cdot (2 \cdot 4 \cdot 3,,) x, - 1 \cdot (2 \cdot 4 \cdot 3,,) x

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