展开 (d^2+1)(6sin(x))

解答

展开

(d^{2} + 1) (6 sin (x))

6 d^{2} sin (x) + 6 sin (x)

求解步骤

(d^{2} + 1) (6 sin (x))

= (6 sin (x)) (d^{2} + 1)

使用分配律:

a (b + c) = ab + a c

(6 sin (x)) (d^{2} + 1) = 6 sin (x) d^{2} + 6 sin (x) \cdot 1

= 6 sin (x) d^{2} + 6 sin (x) \cdot 1

化简

6 sin (x) d^{2} + 6 sin (x) \cdot 1 : 6 d^{2} sin (x) + 6 sin (x)

= 6 d^{2} sin (x) + 6 sin (x)

s im pl i f y (x^{2} - \frac{2}{x} + 1) \cdot 6 x^{2}

e x p an d (1 + \frac{y}{2})^{3}

e x p an d \frac{5 ( - 25 n + 25 )}{2 n}

s im pl i f y (x - 1) (x^{2} + 4)

e x p an d (4 + e^{- t} (- 4 cos (t) - 4 sin (t))) \cdot e^{t}