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NDA 2014
Exam
NDA
Year
2014
Subject
Mathematics
Chapter
Functions

NDA 2014 · Mathematics · Functions

Consider the function f(x)=(x-1)/(x+1) . What is f(f(x)) equal to?

Consider the function f(x)=x−1x+1f(x)=\frac{x-1}{x+1}. What is f(f(x))f(f(x)) equal to?

Options

  1. Axx
  2. B−x-x
  3. C−1x-\frac{1}{x}
  4. DNone of these

Correct answer

C. −1x-\frac{1}{x}

Step-by-step solution

The correct answer is option(C)
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