Image text transcribed for accessibility: In the text, for sampling purposes. we used time limited narrow pulses such as impulses or rectangular pulses of width less than the sampling interval T. Show that it is not necessary to restrict the sampling pulse width. We Can use sampling pulses of arbitrarily large duration and still be able to reconstruct the signal x(t) as long as the pulse rate is no less than the Nyquist rate for x(t). Consider x(t) to be band limited to B Hz. The sampling pulse to be used is an exponential e-atu(t). We multiply x(t) by a periodic train of exponential pulses of the form e-atu(f) spaced T seconds apart. Find the spectmm of the sampled signal, and show that x(t) can be reconstructed from this sampled signal provided the sampling rate is no less than 2B Hz or T < 1/2B. Explain how you would reconstruct x(t) from the sampled signal.