展开 1/((s-1)(s^2+2s+2))

解答

展开

\frac{1}{( s - 1 ) ( s ^{2} + 2 s + 2 )}

\frac{1}{s ^{3} + s ^{2} - 2}

求解步骤

\frac{1}{( s - 1 ) ( s ^{2} + 2 s + 2 )}

乘开

(s - 1) (s^{2} + 2 s + 2) : s^{3} + s^{2} - 2

= \frac{1}{s ^{3} + s ^{2} - 2}

\frac{d ^{2}}{d t ^{2}} ((h (t)) (t^{2} + 5)^{8})

e x p an d x^{\frac{2}{3}} (x^{2} - 9)

e x p an d e^{x} (3 cos (3 x) + 9 sin (3 x))

s im pl i f y s^{2} (2 + \frac{2}{s})

s im pl i f y 1 + \frac{K ( s + 1 ) ( s + 2.69 )}{s ^{3}}