展开 (e^x-1-x)/(x(e^x-1))

解答

展开

\frac{e ^{x} - 1 - x}{x ( e ^{x} - 1 )}

\frac{e ^{x} - 1 - x}{e ^{x} x - x}

求解步骤

\frac{e ^{x} - 1 - x}{x ( e ^{x} - 1 )}

乘开

x (e^{x} - 1) : e^{x} x - x

= \frac{e ^{x} - 1 - x}{e ^{x} x - x}

e x p an d a (1, 3, 4) B (2, 4, - 1)

e x p an d \frac{x - 3}{( x + 1 ) ( x - 6 )}

e x p an d \frac{1}{( 3 n - 4 a ^{3} ) ^{2}}

e x p an d (cos (5 x) + cos (10 x) + cos (15 x))^{2}

e x p an d \frac{3 h}{[ ( x + 7 ) ( x + h + 7 ) ]}