f(x)=x+(1/x)  হলে  f(x)-f(1/x) =?

Explanation:

Another Explanation (5): দেওয়া আছে, \( f(x) = x + \frac{1}{x} \) তাহলে, \( f\left(\frac{1}{x}\right) = \frac{1}{x} + \frac{1}{\frac{1}{x}} = \frac{1}{x} + x \) সুতরাং, \( f(x) - f\left(\frac{1}{x}\right) = \left(x + \frac{1}{x}\right) - \left(\frac{1}{x} + x\right) \) \( = x + \frac{1}{x} - \frac{1}{x} - x \) \( = 0 \) অতএব, \( f(x) - f\left(\frac{1}{x}\right) = 0 \) 🥳🎉