Question

CALCULO 2 SEMANA 1

PERGUNTA 2

Seja f colon A subset of straight real numbers squared rightwards arrow straight real numbers dada por f left parenthesis x comma y right parenthesis equals fraction numerator x squared over denominator 1 minus x squared minus y squared end fraction, onde A subset of straight real numbers squared é o maior subconjunto de straight real numbers squared no qual f está bem definida. Neste caso, podemos afirmar que:


A equals straight real numbers squared.


A equals left curly bracket left parenthesis x comma y right parenthesis element of straight real numbers squared divided by x squared plus y squared less or equal than 1 right curly bracket intersection left curly bracket left parenthesis x comma y right parenthesis element of straight real numbers squared divided by x squared plus y squared greater or equal than 1 right curly bracket.


A equals left curly bracket left parenthesis x comma y right parenthesis element of straight real numbers squared divided by x squared plus y squared not equal to 1 right curly bracket.


A equals left curly bracket left parenthesis x comma y right parenthesis element of straight real numbers squared divided by x plus y not equal to 1 right curly bracket.


A equals left curly bracket left parenthesis x comma y right parenthesis element of straight real numbers squared divided by x squared plus y squared greater or equal than 1 right curly bracket.

Answer 1

Resposta:

resposta letra C

Explicação passo a passo: