展开 T(1,2,-4)

解答

展开

T (1, 2, - 4)

1 \cdot T, 2, - 4 T

求解步骤

T (1, 2, - 4)

= (1 \cdot 2,, - 4) T

使用分配律:

a (b - c) = ab - a c

a = T, b = 1, 2,, c = 4

= T \cdot 1, 2, - T \cdot 4

= 1 \cdot T, 2, - 4 T

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