Question

derivative of [y(x^2+y^2)+x]/[x^2+y^2]^2

Answer 1

Answer:

[y(x² +y²)+x]/[x² +y² ]²

= [x²y+ y³+ x]. / [(x²+ y²) (x²+y²)]

= x²y+ y³+ x / x⁴+ 2x²y²+y⁴