Which of the following statements is true about the two sided Laplace transform?
- It exists for every signal that may or may not have a Fourier transform.
- It has no poles for any bounded signal that is non-zero only inside a finite time interval.
- The number of finite poles and finite zeroes must be equal.
- If a signal can be expressed as a weighted sum of shifted one sided exponentials, then its Laplace Transform will have no poles.