展开 ((s+1))/(s*(s^2+1))

解答

展开

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

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

求解步骤

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

乘开

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

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

e x p an d ln (2 x - 2 a) (x - a)^{3}

e x p an d e^{6 t} (t + e^{- 3 t})

e x p an d \frac{( x - 2 ) ( x + 2 )}{x ^{4} ( 2 x + 7 )}

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

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