Find the total energy in the complex signal g(t) = (cos t + j sin t)(u(t) - u(t - 1) Where u(t) is the unit step function. Determine whether the following signals are energy signals, power signals, or neither. x1(t) = e-atu(t), for a > 0 x2(t) = A cos( omega0t + theta) x3(t) = tu(t)