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  4. X, Y ⊂: R: f : X arrow Y is a function and f(x) = x': : ∀ x ∈ X then the condition for it to be one-one but not onto is

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Q. $X, Y \subset\: R : f \: X \rightarrow Y $ is a function and $f(x) = x'\:\: \forall \, x \, \in X$ then the condition for it to be one-one but not onto is

Relations and Functions - Part 2

Solution:

Correct answer is (c) X = R' , Y = R