Question

Resolvendo o limite lim (x,y)-->(2,1) [x³ + x²y-2xy-2x²-2x+4]/[xy+x-2y-2] obeten-se:

Answer 1

Resposta:

Explicação passo-a-passo:

$\lim_{(x,y) \to \(2,1)}\frac{(x-2)(x^{2}+xy-2) }{(x-2)(y+1)}= \lim_{x,y) \to \=(2,1)}\frac{x^{2}+xy-2 }{y+1}=\frac{2^{2}+2.1-2 }{1+1}=\frac{4}{2}=2$