Determine an analytical expression for the unit step response s(t) of the cascade (series) combination of LT-I two systems with the following impulse responses: h₁ (t) = e¯tu (t) h₂ (t) = e−¹u (t) in other words, assume the following signal is applied to the input of system h1 x(t) = u(t) The output of system h₁ is connected to the input of system h₂. Enter the numeric values for all the coefficients missing in the output of system h2: y2 (t) = A8 (t) + Bu (t) + Ctu (t) + De¯u (t) + Ete-*u (t) 8(t) *x(t) = x(t) u (t)u(t) = r (t) = tu (t) u (t) * e¯atu (t) = (1-e) u (t) e-atu (t) eatu(t) = te¯atu (t) rect (t) *rect (t) = tri (½)