determine o domínio da função escalar
h ( x , y ) = g ( f ( x , y ) ) , sabendo que = f ( x , y ) = 1 − xy / 1 + x^2y^2 e g ( t ) = t + lnt

Qual alternativa ?

A) Df={(x,y)∈R^2∣x^2y^2<1}.
B)Df={(x,y)∈R^2∣xy<1}.
C)Df={(x,y)∈R^2∣xy≤1}.
D)Df={(x,y)∈R^2∣xy>1}.
E) Df={(x,y)∈R^2∣x^2y^2>1}.
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