If f( x )= ( 1+ x 1- x ) then f ( 2 x 1+x^ 2 ) will be equal to:
Mathematics · JEE Main · NTA Exams — Sets, Relations and Functions
If \(f(\mathbf{x})=\log \left(\frac{1+\mathbf{x}}{1-\mathbf{x}}\right)\) then \(f\left(\frac{2 x}{1+x^{2}}\right)\) will be equal to:
- \(\mathrm{Zf}\left(\mathrm{x}^{2}\right)\)
- \(\mathrm{f}\left[\mathrm{x}^{2}\right]\)
- \(\mathrm{Zf}(2 x)\)
- \(\mathrm{Zf}(\mathrm{x})\)
Answer
(B) f [ x ^ 2 ]
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