Question

qual a função inversa de x= y³+1/y+1

Answer 1

Isolando o y:

$x=\frac{ y^{3} +1 }{y+1} \\ y^{3} +1=x(y+1) \\ y^{3}+1=xy+x \\ y^{3}=xy+x-1 \\y = \sqrt[3]{xy+x-1}$

Troquei x por y:

$x = \sqrt[3]{yx+y-1}$