1 point -Calculate the average power of the discrete-time wave shown in fig a? * * 1:|: -6 poble -4 -3 -2 -1 0 1 2 3 4 5 Fig a -1 0 -1 1 6 0 - The step function u (t) is integral 1 point of with respect to time t. * Sinusoidal function Ramp function Impulse function Exponential function