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What is the range of the function 

  1. Set of all real numbers
  2. Set of all integers
  3. {-1, 1}
  4. {-1, 0, 1}

Answer (Detailed Solution Below)

Option 3 : {-1, 1}
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Detailed Solution

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Concept:

Explanation:

Referring to the graph for the given function,

Here, x  = 0 is not in the domain of f(x)

This can be re - written as,

So, referring to the graph for the given function,

You can see that there are only two outputs for all the values of x in the domain of f(x) so the range of the function f(x) will be {-1, 1}

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