展开 ((x^2+y^2)-(2x))/((x^2+y^2)^2)

解答

展开

\frac{( x ^{2} + y ^{2} ) - ( 2 x )}{( x ^{2} + y ^{2} ) ^{2}}

\frac{x ^{2} + y ^{2} - 2 x}{x ^{4} + 2 x ^{2} y ^{2} + y ^{4}}

求解步骤

\frac{( x ^{2} + y ^{2} ) - ( 2 x )}{( x ^{2} + y ^{2} ) ^{2}}

去除括号:

(a) = a

= \frac{x ^{2} + y ^{2} - 2 x}{( x ^{2} + y ^{2} ) ^{2}}

(x^{2} + y^{2})^{2} = x^{4} + 2 x^{2} y^{2} + y^{4}

= \frac{x ^{2} + y ^{2} - 2 x}{x ^{4} + 2 x ^{2} y ^{2} + y ^{4}}

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

e x p an d 3 sin (\frac{π}{4} (x - 5)) + 5

\frac{\partial}{\partial x} ((z) (x^{3} z^{5} + sin (y^{7} z^{5}) + 6))

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

e x p an d 3 sin (\frac{π}{12} (t - 6)) + 13