Question设函数 $f(x)=e^{x}(x \neq 0)$ ，求 $f\left(x_{1}\right) \cdot f\left(x_{2}\right)$ 的结果。选项是：A. $f\left(x_{1}\right)+f\left(x_{2}\right)$ B. $f\left(x_{1}+x_{2}\right)$ C. $f\left(x_{1}\right)-f\left(x_{2}\right)$ D. $f\left(\frac{x_{1}}{x_{2}}\right)$

Studdy Solution
Now, we can express $e^{x_{1} + x_{2}}$ in terms of the function $f(x)$ .
$f\left(x_{1}\right) \cdot f\left(x_{2}\right) = f\left(x_{1} + x_{2}\right)$ So, the correct answer is B. $f\left(x_{1}+x_{2}\right)$ .

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