展开 (s^2+2s+3)/((s+1)^2)

解答

展开

\frac{s ^{2} + 2 s + 3}{( s + 1 ) ^{2}}

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

求解步骤

\frac{s ^{2} + 2 s + 3}{( s + 1 ) ^{2}}

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

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

e x p an d A (8, 3, 2) B (4, - 1, 5) C (- 2, 5, 6)

e x p an d (6 x^{2} - 3 x) d x

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

e x p an d - 2 \cdot (1 - ln (x))

e x p an d 36 (1 - \frac{π}{4})