展开 1/((1+x^2)arctan(x))

解答

展开

\frac{1}{( 1 + x ^{2} ) arctan ( x )}

\frac{1}{arctan ( x ) + x ^{2} arctan ( x )}

求解步骤

\frac{1}{( 1 + x ^{2} ) arctan ( x )}

乘开

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

= \frac{1}{arctan ( x ) + x ^{2} arctan ( x )}

e x p an d, 0.5 (110 - 2 p) (\frac{110 - 2 p}{2})

\frac{d}{d t} ((x) (3 t - 5))

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

e x p an d (9 df - 7) 3

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