Question

State the restrictions of 1-x-y/x+y

Answer 1

The restriction of the expression as given in the task content is; x +y = 0.

What is the restriction of the expression?

The expression in the task content is rational;

(1-x-y)/(x+y).

On this note, the restriction to the expression is the values which render the denominator of the expression equal to 0 and consequently the expression value to undefined.

Hence, the restriction is; x+y = 0.

Read more on undefined rational function;

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