jee-main 2019 Q81

jee-main · India · session1_09jan_shift2 Composite & Inverse Functions Injectivity, Surjectivity, or Bijectivity Classification

Let $A = \{x \in R : x$ is not a positive integer$\}$. Define a function $f: A \rightarrow R$ as $f(x) = \frac{2x}{x-1}$, then $f$ is:
(1) Injective but not surjective
(2) Not injective
(3) Surjective but not injective
(4) Neither injective nor surjective

Let $A = \{x \in R : x$ is not a positive integer$\}$. Define a function $f: A \rightarrow R$ as $f(x) = \frac{2x}{x-1}$, then $f$ is:\\
(1) Injective but not surjective\\
(2) Not injective\\
(3) Surjective but not injective\\
(4) Neither injective nor surjective

Paper Questions

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