展开 (1-x)y''(x)+y

解答

展开

(1 - x) y^{''} (x) + y

y'' (x) - x y'' (x) + y

求解步骤

(1 - x) y^{''} (x) + y

乘开

y^{''} (x) (1 - x) : y^{''} (x) - x y^{''} (x)

= y^{''} (x) - x y^{''} (x) + y

s im pl i f y (x + y i) e^{2 (x + y i)}

e x p an d \frac{3 x + 2}{( x - 5 ) ( x - 3 )}

e x p an d \frac{x ( x + 4 )}{x - 16}

e x p an d (- 8, - 3) y (2, 4)

e x p an d \frac{( p + q ) ( p - q ) - 2 pq}{pq - q}