If f(x) is a polynomial function satisfying f(x) f ( 1 x )=f(x)+f ( 1 x ) and f(3)=28 …
Mathematics · JEE Main · NTA Exams — Sets, Relations and Functions
If \(f(x)\) is a polynomial function satisfying
\(f(x) \cdot f\left(\frac{1}{x}\right)=f(x)+f\left(\frac{1}{x}\right) \text { and } f(3)=28 \text {. Find } f(4)\)
- 65
- 72
- 64
- none of these
Answer
(A) 65
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