展开 1/((s-2)(s-3))

解答

展开

\frac{1}{( s - 2 ) ( s - 3 )}

\frac{1}{s ^{2} - 5 s + 6}

求解步骤

\frac{1}{( s - 2 ) ( s - 3 )}

乘开

(s - 2) (s - 3) : s^{2} - 5 s + 6

= \frac{1}{s ^{2} - 5 s + 6}

e x p an d (2 x y^{4} e^{y} + 2 x y^{3} + y) d x + (x^{2} y^{4} e^{y} - x^{2} y^{2} - 3 x) d y

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

e x p an d A (5, - 2) B (- 1, 2)

e x p an d (2 c + d + e) (2 c + d - e)

e x p an d \frac{1}{( s - 2 ) ( s ^{2} + 1 )}