MCQ
The domain of the function $\text{f}(\text{x})=\frac{\text{x}}{(1+\text{x}^2)}$ is:
  • A
    R - {1}
  • B
    R - {-1}
  • C
    R
  • D
    None of these

Answer

  1. R

Solution:

Given, function $\text{f}(\text{x})=\frac{\text{x}}{(1+\text{x}^2)}$

Since f(x) is defined for all real values of x

So, domain(f) = R.

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