45. The function \( f(x) = \begin{cases} \frac{x^2 + 2x + 3}{x^2 - 1}, & \text{if } x \geq 0 \\ \frac{x}{e^x}, & \text{if } x < 0 \end{cases} \) has which of the following asymptotes?
Answer is: option3
Solution:
.
