d/(d{r)}(({z}(r,x,y))({x}^2-{y}^2))

解答

\frac{d}{d r} ((z (r, x, y)) (x^{2} - y^{2}))

0

求解步骤

\frac{d}{d r} ((z (r, x, y)) (x^{2} - y^{2}))

常数微分:

\frac{d}{d x} (a) = 0

= 0

s im pl i f y (2 - 3 + x) (2 + 3 + x)

e x p an d - cos ((3 x + 6)^{4})

e x p an d \frac{5 37 ( e ^{12 π} - 1 )}{6}

s im pl i f y (3 x - 3) (3 x + 8)

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