展开 (e^t)/((s-1)^2)

解答

展开

\frac{e ^{t}}{( s - 1 ) ^{2}}

\frac{e ^{t}}{s ^{2} - 2 s + 1}

求解步骤

\frac{e ^{t}}{( s - 1 ) ^{2}}

(s - 1)^{2} = s^{2} - 2 s + 1

= \frac{e ^{t}}{s ^{2} - 2 s + 1}

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

e x p an d \frac{( 2 x - 3 ) ( 3 x - 1 )}{5 x ^{2} ( x - 5 )}

e x p an d (8, - 2) (2 x - 5 y = - 12)

e x p an d A (4, 7) y B (5, - 1)

\frac{\partial}{\partial x} ((z) (x z + z^{2} - y))