2.22. For each of the following pairs of waveforms, use the convolution integral to find the
response y(t) of the LTI system with impulse response h(t) to the input x(t). Sketch
your results.
(a) {:[x(t)=e^(-\alpha t)u(t)],[h(t)=e^(-\beta t)u(t)]}\alpha !=\beta and when \alpha =\beta .