Question

1. Fie f:R\{1}->R, f(x)= $\frac{x+1}{x-1}$. Calculati lim$\lim_{x \to \--1}\frac{f(x)-f(-1)}{x+1}$.
2. Calculati derivata functiei f:R->R,f(x)=$x^{3} -3^{x^2}+4$, g(x) = $x^{3}-5^x^2+8x-4$ . Calculati f'(x)-g'(x).
3. Fie f:[1;+infinit)->R,f(x)= $e^{x} + \frac{x-1}{x}$ . Calculati f'(x)

Multumesc frumos !

Answer 1

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