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AP EAMCET · Maths · Functions

For \(f(x)=\sin \left(\frac{1}{|x| \sqrt{x^2-1}}\right)\) the domain and range of \(f(x)\) in \(R\) are

  1. A \(R-\{0, \pm 1\}\) and \([-1,1]\), respectively
  2. B \(R-[-1,1]\) and \([-1,1]\) respectively
  3. C \(R-\{0, \pm 1\}\) and \([0,1]\), respectively
  4. D \(R-[-1,1]\) and \([0,1]\), respectively
Verified Solution

Answer & Solution

Correct Answer

(B) \(R-[-1,1]\) and \([-1,1]\) respectively

Step-by-step Solution

Detailed explanation

Given function \(f(x)=\sin \left(\frac{1}{|x| \sqrt{x^2-1}}\right)\) For the domain, \(|x| \neq 0 \Rightarrow x \neq 0\) and \(x^2-1>0 \Rightarrow x \in \mathbf{R}-[-1,1]\) So domain of \(f\) is \(R-[-1,1]\) and we know the range of sine function is \([-1,1]\).