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Fill in the blank: A function $f: A \rightarrow B$ where for every $x1, x2 \in X, f (x1) = f (x2) \Rightarrow x1 = x2$, is called a ______ function?

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Answer: One-One or Injective Function.  A function $f: A \rightarrow B$ where for every $x1, x2 \in X, f(x1) = f(x2) \Rightarrow x1 = x2$ is called a one-one function.

x1,x2X,f(x1)=f(x2)x1

answered Mar 12, 2013 by balaji.thirumalai
 

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