1.Let A={x∈R:x is not a positive integer}A = \{x \in \mathbb R : x \text{ is not a positive integer}\}A={x∈R:x is not a positive integer}. Define a function f:A→Rf: A \to \mathbb Rf:A→R as f(x)=2xx−1f(x) = \frac{2x}{x-1}f(x)=x−12x, then fff is:Login to continueOnly logged in users canattempt or see the solution.
