展开 (sqrt(x)+e^x(4+x^2))/(e^x+4)

解答

展开

\frac{x + e ^{x} ( 4 + x ^{2} )}{e ^{x} + 4}

\frac{x + 4 e ^{x} + e ^{x} x ^{2}}{e ^{x} + 4}

求解步骤

\frac{x + e ^{x} ( 4 + x ^{2} )}{e ^{x} + 4}

乘开

x + e^{x} (4 + x^{2}) : x + 4 e^{x} + e^{x} x^{2}

= \frac{x + 4 e ^{x} + e ^{x} x ^{2}}{e ^{x} + 4}

e x p an d (e^{- 5 t} - e^{2 t})^{2}

e x p an d \frac{5 a + 5}{4} - \frac{3 - 7 a}{6}

e x p an d e (t - 2.36)

e x p an d so l v e (- 1575000 + \frac{x}{1 + ( 0.2139600000000 \dots ) ^{2}} = 0)

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