展开 ((1))/((x(x+1)))

解答

展开

\frac{( 1 )}{( x ( x + 1 ) )}

\frac{1}{x ^{2} + x}

求解步骤

\frac{1}{x ( x + 1 )}

乘开

x (x + 1) : x^{2} + x

= \frac{1}{x ^{2} + x}

e x p an d 1 - e^{10 k - 10 (a_{0} + 0.00512)}

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

e x p an d 20 (4 x^{3} - 3 x)^{19} (12 x^{2} - 3)

e x p an d e^{2 t} (7 sin (t) - cosh (3 t))

e x p an d n gu l a r (- 2, - \frac{π}{3})