展开 (sin(x^2))/((x+5)(x+4))

解答

展开

\frac{sin ( x ^{2} )}{( x + 5 ) ( x + 4 )}

\frac{sin ( x ^{2} )}{x ^{2} + 9 x + 20}

求解步骤

\frac{sin ( x ^{2} )}{( x + 5 ) ( x + 4 )}

乘开

(x + 5) (x + 4) : x^{2} + 9 x + 20

= \frac{sin ( x ^{2} )}{x ^{2} + 9 x + 20}

\frac{\partial}{\partial y} ((p (y, x)) (x - y))

s im pl i f y (t + π) e^{- in wt}

e x p an d 4 ((3 x - 2) x)

e x p an d 1 5^{x (x + 3)}

e x p an d \frac{2 ( 18 π + 16 ) 18 π + 16 - 128}{27}