Let f ( x ) = ( x + 1) 2 –1, x ≥ –1. Then the set x : f ( x ) = f –1 ( x ) is

Mathematics · JEE Advanced · NTA Exams — Sets, Relations and Functions

1. 
2. {0, 1, –1}
3. {0, –1}
4. 

Answer

(C) 0, –1

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