化简 v(-5-1)f(3.1)

解答

化简

v (- 5 - 1) f (3.1)

- 18.6 v f

求解步骤

v (- 5 - 1) f (3.1)

使用法则:

(a) = a

(3.1) = 3.1

= v (- 5 - 1) f \cdot 3.1

数字相减:

- 5 - 1 = - 6

= v (- 6) f \cdot 3.1

数字相乘:

(- 6) \cdot 3.1 = - 18.6

= v (- 18.6) f

去除括号:

v (- 18.6) f = - v \cdot 18.6 f

= - v \cdot 18.6 f

= - 18.6 v f

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e x p an d \frac{K}{j w ( j w + 3 ) ( j w + 5 )}

e x p an d \frac{( M - d ) ^{2}}{8 d}

e x p an d \frac{2}{( s ^{2} - s ) ^{3}}